{"id":"CVE-2018-7225","aliases":["ALPINE-CVE-2018-7225","DEBIAN-CVE-2018-7225","DLA-1332-1","DLA-1979-1","DLA-2014-1","DLA-2045-1","DSA-4221-1","EUVD-2018-18964","GHSA-2v5x-9xhg-52hm","MGASA-2018-0198","MGASA-2020-0242","MGASA-2020-0435","RHSA-2018:1055","SUSE-SU-2018:0830-1","SUSE-SU-2018:0875-1","UBUNTU-CVE-2018-7225","USN-3618-1","USN-4547-1","USN-4573-1","USN-4587-1","openSUSE-SU-2024:10598-1"],"status":"published","title":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in...","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.06106,"percentile":0.93478,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2018-02-19T00:00:00Z","modified":"2026-10-23T18:03:23Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"libvncserver","fixed_in":["0.9.11-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"libvncserver","fixed_in":["0.9.11-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.5","package":"libvncserver","fixed_in":["0.9.11-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.6","package":"libvncserver","fixed_in":["0.9.11-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"libvncserver","fixed_in":["0.9.11-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"libvncserver","fixed_in":["0.9.11-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"libvncserver","fixed_in":["0.9.11-r2"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"libvncserver","fixed_in":["0.9.11+dfsg-1.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libvncserver","fixed_in":["0.9.11+dfsg-1.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libvncserver","fixed_in":["0.9.11+dfsg-1.1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"tightvnc","fixed_in":["1:1.3.9-9.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tightvnc","fixed_in":["1:1.3.9-9.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tightvnc","fixed_in":["1:1.3.9-9.1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"vino","fixed_in":["3.22.0-6"],"sources":["osv"]},{"ecosystem":"Debian:7","package":"libvncserver","fixed_in":["0.9.9+dfsg-1+deb7u3"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"libvncserver","fixed_in":["0.9.9+dfsg2-6.1+deb8u3"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"libvncserver","fixed_in":["0.9.11+dfsg-1+deb9u1"],"sources":["osv"]},{"ecosystem":"Mageia:5","package":"libvncserver","fixed_in":["0.9.10-1.3.mga5"],"sources":["osv"]},{"ecosystem":"Mageia:6","package":"libvncserver","fixed_in":["0.9.11-1.1.mga6"],"sources":["osv"]},{"ecosystem":"Red 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Advisory","advisory"]},{"url":"https://security.gentoo.org/glsa/201908-05","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://usn.ubuntu.com/4547-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://usn.ubuntu.com/4573-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://usn.ubuntu.com/4587-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-7225","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2v5x-9xhg-52hm"},{"url":"https://security.alpinelinux.org/vuln/CVE-2018-7225","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-7225","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0198.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22847","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/YYNK6ZTW4QSUNWBL3YCZXRC3QMHW7FZK/","tags":["web"]},{"url":"https://advisories.mageia.org/MGASA-2020-0242.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=25786","tags":["report"]},{"url":"https://www.debian.org/lts/security/2019/dla-2014","tags":["web"]},{"url":"https://advisories.mageia.org/MGASA-2020-0435.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=27404","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4547-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4587-1","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1546858","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_1055.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2018-7225","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-7225","tags":["advisory","report"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20180830-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1017711","tags":["report"]},{"url":"https://bugzilla.suse.com/1017712","tags":["report"]},{"url":"https://bugzilla.suse.com/1081493","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9941","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9942","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7225","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20180875-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-7225","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3618-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4573-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-15127","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20019","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20020","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20021","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20022","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20023","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20024","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20748","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20749","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-20750","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-15681","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-6053","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14397","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14402","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14403","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14404","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-6051","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-6052","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-6054","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-6055","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-9941","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-9942","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2006-2450","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-18922","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15126","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15127","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20019","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20021","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20022","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20023","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20024","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20748","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20749","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20750","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-21247","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-6307","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-15681","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-15690","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-20788","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-20839","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-20840","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14397","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14398","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14399","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14400","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14401","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14402","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14403","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14404","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25708","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:00:00Z","modified":"2024-08-05T06:24:11.789Z","updated_at":"2026-11-02T14:35:09.908186Z"}],"euvd":[{"id":"EUVD-2018-18964","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:00:00Z","modified":"2024-08-05T06:24:11Z","updated_at":"2026-11-03T02:40:06.159235Z"}],"ghsa":[{"id":"GHSA-2v5x-9xhg-52hm","title":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in...","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2022-05-13T01:14:07Z","modified":"2023-02-01T05:04:22Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:50:08.898362Z"}],"nvd":[{"id":"CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:29:00.253Z","modified":"2026-06-17T02:02:49.12Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:04:23.783914Z"}],"osv":[{"id":"ALPINE-CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:29:00.253Z","modified":"2026-10-23T17:24:50.006724478Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:29:00.253Z","modified":"2026-10-20T10:49:56.401697035Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:09.74357Z"},{"id":"DEBIAN-CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T15:29:00.253Z","modified":"2026-10-23T18:03:23.992481418Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"RHSA-2018:1055","title":"Red Hat Security Advisory: libvncserver security update","status":"published","published":"2024-09-16T01:03:03Z","modified":"2026-06-26T10:36:56Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"UBUNTU-CVE-2018-7225","description":"An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.","status":"published","published":"2018-02-19T00:00:00Z","modified":"2026-10-17T12:55:28.057057591Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:18.772093Z"},{"id":"DLA-1332-1","title":"libvncserver - security update","status":"published","published":"2018-03-31T00:00:00Z","modified":"2026-03-09T01:01:48.631691Z","updated_at":"2026-11-02T15:46:09.336894Z"},{"id":"DLA-1979-1","title":"italc - security update","status":"published","published":"2019-10-30T00:00:00Z","modified":"2026-03-09T01:18:20.937176Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"DLA-2014-1","title":"vino - security update","status":"published","published":"2019-11-29T00:00:00Z","modified":"2026-03-09T01:23:14.064857Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"DLA-2045-1","title":"tightvnc - security update","status":"published","published":"2019-12-21T00:00:00Z","modified":"2026-03-09T01:19:55.474259Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"DSA-4221-1","title":"libvncserver - security update","status":"published","published":"2018-06-08T00:00:00Z","modified":"2026-03-09T01:20:00.204701Z","updated_at":"2026-11-02T15:46:16.862196Z"},{"id":"MGASA-2018-0198","title":"Updated libvncserver packages fix security vulnerability","description":"An issue was discovered in LibVNCServer through 0.9.11.\nrfbProcessClientNormalMessage() in rfbserver.c does not sanitize\nmsg.cct.length, leading to access to uninitialized and potentially\nsensitive data or possibly unspecified other impact (e.g., an integer\noverflow) via specially crafted VNC packets (CVE-2018-7225).\n","status":"published","published":"2018-04-08T21:37:49Z","modified":"2026-04-16T06:24:19.942567134Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"MGASA-2020-0242","title":"Updated vino packages fix security vulnerability","description":"Updated vino packages fix security vulnerabilities:\n\nThe rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in\nLibVNCServer did not properly handle attempts to send a large amount of\nClientCutText data, which allowed remote attackers to cause a denial of\nservice (memory consumption or daemon crash) via a crafted message that\nwas processed by using a single unchecked malloc (CVE-2014-6053).\n\nAn issue was discovered in LibVNCServer. rfbProcessClientNormalMessage()\nin rfbserver.c did not sanitize msg.cct.length, leading to access to\nuninitialized and potentially sensitive data or possibly unspecified other\nimpact (e.g., an integer overflow) via specially crafted VNC packets\n(CVE-2018-7225).\n\nLibVNC contained a memory leak in VNC server code, which allowed an\nattacker to read stack memory and could be abused for information\ndisclosure. Combined with another vulnerability, it could be used to\nleak stack memory and bypass ASLR. This attack appeared to be exploitable\nvia network connectivity (CVE-2019-15681).\n\nThe bundled libvncserver code in vino has been patched to fix these issues.\n","status":"published","published":"2020-06-10T21:39:20Z","modified":"2026-04-16T04:44:08.600140176Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"MGASA-2020-0435","title":"Updated italc packages fix security vulnerabilities","description":"An issue was discovered in LibVNCServer through 0.9.11.\nrfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length,\nleading to access to uninitialized and potentially sensitive data or possibly\nunspecified other impact (e.g., an integer overflow) via specially crafted\nVNC packets. (CVE-2018-7225)\n\nLibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap\nout-of-bound write vulnerability in server code of file transfer extension that\ncan result remote code execution. (CVE-2018-15127)\n\nLibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple\nheap out-of-bound write vulnerabilities in VNC client code that can result\nremote code execution. (CVE-2018-20019)\n\nLibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap\nout-of-bound write vulnerability inside structure in VNC client code that can\nresult remote code execution. (CVE-2018-20020)\n\nLibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835:\nInfinite loop vulnerability in VNC client code. Vulnerability allows attacker\nto consume excessive amount of resources like CPU and RAM. (CVE-2018-20021)\n\nLibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple\nweaknesses CWE-665: Improper Initialization vulnerability in VNC client code\nthat allows attacker to read stack memory and can be abuse for information\ndisclosure. Combined with another vulnerability, it can be used to leak stack\nmemory layout and in bypassing ASLR. (CVE-2018-20022)\n\nLibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665:\nImproper Initialization vulnerability in VNC Repeater client code that allows\nattacker to read stack memory and can be abuse for information disclosure.\nCombined with another vulnerability, it can be used to leak stack memory layout\nand in bypassing ASLR. (CVE-2018-20023)\n\nLibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null\npointer dereference in VNC client code that can result DoS. (CVE-2018-20024)\n\nLibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities\nin libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.\n(CVE-2018-20748)\n\nLibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in\nlibvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.\n(CVE-2018-20749)\n\nLibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in\nlibvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.\n(CVE-2018-20750)\n\nLibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a \nmemory leak (CWE-655) in VNC server code, which allow an attacker to read\nstack memory and can be abused for information disclosure. Combined with\nanother vulnerability, it can be used to leak stack memory and bypass ASLR.\nThis attack appear to be exploitable via network connectivity.\n(CVE-2019-15681)\n","status":"published","published":"2020-11-23T19:51:37Z","modified":"2026-04-16T04:42:45.007668168Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2024:10598-1","title":"LibVNCServer-devel-0.9.13-3.1 on GA media","description":"These are all security issues fixed in the LibVNCServer-devel-0.9.13-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:15:49.041318Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"SUSE-SU-2018:0830-1","title":"Security update for LibVNCServer","description":"\nLibVNCServer was updated to fix two security issues.\n\nThese security issues were fixed:\n\n- CVE-2018-7225: Missing input sanitization inside rfbserver.c rfbProcessClientNormalMessage() (bsc#1081493).\n- CVE-2016-9942: Heap-based buffer overflow in ultra.c allowed remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions (bsc#1017712).\n- CVE-2016-9941: Heap-based buffer overflow in rfbproto.c allowed remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message containing a subrectangle outside of the client drawing area (bsc#1017711).\n  ","status":"published","published":"2018-03-27T14:28:22Z","modified":"2026-02-04T04:32:15.552418Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"SUSE-SU-2018:0875-1","title":"Security update for LibVNCServer","description":"This update for LibVNCServer fixes the following issues:\n\n- CVE-2018-7225: Missing input sanitization inside rfbserver.c rfbProcessClientNormalMessage() (bsc#1081493).\n","status":"published","published":"2018-04-05T15:24:15Z","modified":"2026-02-04T03:22:49.51761Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"USN-3618-1","title":"libvncserver vulnerability","description":"It was discovered that LibVNCServer incorrectly handled certain packet\nlengths. A remote attacker able to connect to a LibVNCServer could possibly\nuse this issue to obtain sensitive information, cause a denial of service,\nor execute arbitrary code.\n","status":"published","published":"2018-04-04T14:43:45Z","modified":"2026-04-27T15:18:24.391538Z","updated_at":"2026-11-02T16:58:13.496563Z"},{"id":"USN-4547-1","title":"italc vulnerabilities","description":"It was discovered that an information disclosure vulnerability existed in the\nLibVNCServer vendored in iTALC when sending a ServerCutText message. An\nattacker could possibly use this issue to expose sensitive information.\n(CVE-2019-15681)\n\nIt was discovered that the LibVNCServer and LibVNCClient vendored in iTALC\nincorrectly handled certain packet lengths. A remote attacker could possibly\nuse this issue to obtain sensitive information, cause a denial of service, or\nexecute arbitrary code.\n(CVE-2018-15127 CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022,\nCVE-2018-20023, CVE-2018-20024, CVE-2018-20748, CVE-2018-20749, CVE-2018-20750,\nCVE-2018-7225, CVE-2019-15681)\n\n","status":"published","published":"2020-09-28T16:07:15Z","modified":"2026-04-27T15:48:47.189892546Z","updated_at":"2026-11-02T16:58:15.159055Z"},{"id":"USN-4573-1","title":"vino vulnerabilities","description":"Nicolas Ruff discovered that Vino incorrectly handled large ClientCutText\nmessages. A remote attacker could use this issue to cause the server to\ncrash, resulting in a denial of service. (CVE-2014-6053)\n\nIt was discovered that Vino incorrectly handled certain packet lengths. A\nremote attacker could possibly use this issue to obtain sensitive\ninformation, cause a denial of service, or execute arbitrary code.\n(CVE-2018-7225)\n\nPavel Cheremushkin discovered that an information disclosure vulnerability\nexisted in Vino when sending a ServerCutText message. An attacker could\npossibly use this issue to expose sensitive information. (CVE-2019-15681)\n\nIt was discovered that Vino incorrectly handled region clipping. A remote\nattacker could possibly use this issue to cause Vino to crash, resulting in\na denial of service. (CVE-2020-14397)\n\nIt was discovered that Vino incorrectly handled encodings. A remote\nattacker could use this issue to cause Vino to crash, resulting in a denial\nof service, or possibly execute arbitrary code. (CVE-2020-14402,\nCVE-2020-14403, CVE-2020-14404)\n","status":"published","published":"2020-10-07T12:45:39Z","modified":"2026-04-27T15:43:30.812322Z","updated_at":"2026-11-02T16:58:15.159055Z"},{"id":"USN-4587-1","title":"italc vulnerabilities","description":"Nicolas Ruff discovered that iTALC had buffer overflows, divide-by-zero errors\nand didn't check malloc return values. A remote attacker could use these issues\nto cause a denial of service or possibly execute arbitrary code.\n(CVE-2014-6051, CVE-2014-6052, CVE-2014-6053, CVE-2014-6054, CVE-2014-6055)\n\nJosef Gajdusek discovered that iTALC had heap-based buffer overflow\nvulnerabilities. A remote attacker could used these issues to cause a denial of\nservice or possibly execute arbitrary code. (CVE-2016-9941, CVE-2016-9942)\n\nIt was discovered that iTALC had an out-of-bounds write, multiple heap\nout-of-bounds writes, an infinite loop, improper initializations, and null\npointer vulnerabilities. A remote attacker could used these issues to cause a\ndenial of service or possibly execute arbitrary code. (CVE-2018-15127,\nCVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20023,\nCVE-2018-20024, CVE-2018-20748, CVE-2018-20749, CVE-2018-20750, CVE-2018-7225,\nCVE-2019-15681)\n","status":"published","published":"2020-10-20T16:35:20Z","modified":"2026-04-27T15:48:42.890842055Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}