{"id":"CVE-2017-17969","aliases":["ALPINE-CVE-2017-17969","AZL-35092","AZL-6783","DEBIAN-CVE-2017-17969","DLA-1268-1","DSA-4104-1","EUVD-2017-9112","GHSA-5mfm-p22h-8c37","MGASA-2018-0123","OESA-2021-1294","SUSE-SU-2018:0464-1","UBUNTU-CVE-2017-17969","USN-3913-1","openSUSE-SU-2024:11137-1"],"status":"published","title":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before...","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.04991,"percentile":0.92282,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2018-01-30T00:00:00Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.5","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.6","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"p7zip","fixed_in":["16.02-r2"],"sources":["osv"]},{"ecosystem":"Azure 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Party Advisory","advisory","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2018/02/msg00003.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://landave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip/","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory","evidence","report"]},{"url":"http://www.securitytracker.com/id/1040831","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"https://0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.html","tags":["x_refsource_MISC","x_transferred","article"]},{"url":"https://usn.ubuntu.com/3913-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://github.com/p7zip-project/p7zip/issues/7","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-17969","tags":["web","advisory"]},{"url":"https://landave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip"},{"url":"https://usn.ubuntu.com/3913-1"},{"url":"https://github.com/advisories/GHSA-5mfm-p22h-8c37"},{"url":"https://security.alpinelinux.org/vuln/CVE-2017-17969","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-17969","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0123.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22523","tags":["report"]},{"url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1294","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5996","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-10115","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9296","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20180464-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1077724","tags":["report"]},{"url":"https://bugzilla.suse.com/1077725","tags":["report"]},{"url":"https://bugzilla.suse.com/1077978","tags":["report"]},{"url":"https://bugzilla.suse.com/984650","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1372","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-17969","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5996","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2017-17969","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3913-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-17969","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-2335","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3465","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:00:00Z","modified":"2025-01-10T18:53:24.022Z","updated_at":"2026-11-02T14:33:18.556155Z"}],"euvd":[{"id":"EUVD-2017-9112","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:00:00Z","modified":"2025-01-10T18:53:24Z","updated_at":"2026-11-03T00:04:21.239531Z"}],"ghsa":[{"id":"GHSA-5mfm-p22h-8c37","title":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before...","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2022-05-14T01:17:54Z","modified":"2025-01-10T21:32:24Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:59:27.888313Z"}],"nvd":[{"id":"CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00.217Z","modified":"2026-06-17T01:11:58.16Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:13.257031Z"}],"osv":[{"id":"ALPINE-CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00.217Z","modified":"2026-06-15T18:24:31.739895115Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:46.716249Z"},{"id":"AZL-35092","title":"CVE-2017-17969 affecting package p7zip for versions less than 16.02-23","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00Z","modified":"2026-11-05T05:40:51Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-05T16:41:19.554273Z"},{"id":"AZL-6783","title":"CVE-2017-17969 affecting package p7zip for versions less than 16.02-22","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00Z","modified":"2026-04-21T04:38:16.415304Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:08.630357Z"},{"id":"CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00.217Z","modified":"2026-04-16T06:21:09.526879474Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:05.486486Z"},{"id":"DEBIAN-CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T16:29:00.217Z","modified":"2026-09-01T20:03:46.890171925Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:29.100767Z"},{"id":"OESA-2021-1294","title":"p7zip security update","description":"7za for Linux system to archive file as 7z file format\r\n\r\nSecurity Fix(es):\r\n\r\nHeap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.(CVE-2017-17969)\r\n\r\nInsufficient exception handling in the method NCompress::NRar3::CDecoder::Code of 7-Zip before 18.00 and p7zip can lead to multiple memory corruptions within the PPMd code, allows remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.(CVE-2018-5996)\r\n\r\nIncorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.(CVE-2018-10115)\r\n\r\nA null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.(CVE-2016-9296)","status":"published","published":"2021-07-31T11:04:32Z","modified":"2026-08-18T01:15:52.933018715Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"UBUNTU-CVE-2017-17969","description":"Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.","status":"published","published":"2018-01-30T00:00:00Z","modified":"2026-02-04T04:16:16.142401Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:14.977781Z"},{"id":"DLA-1268-1","title":"p7zip - security update","status":"published","published":"2018-02-02T00:00:00Z","modified":"2026-03-09T01:01:43.815711Z","updated_at":"2026-11-02T15:46:09.336894Z"},{"id":"DSA-4104-1","title":"p7zip - security update","status":"published","published":"2018-02-04T00:00:00Z","modified":"2026-03-09T01:21:12.293476Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"MGASA-2018-0123","title":"Updated p7zip packages fix security vulnerability","description":"Heap-based buffer overflow vulnerability in the\nNCompress::NShrink::CDecoder::CodeReal method in p7zip. A remote attacker\ncan take advantage of this flaw to cause a denial-of-service or,\npotentially the execution of arbitrary code with the privileges of the\nuser running p7zip, if a specially crafted shrinked ZIP archive is\nprocessed (CVE-2017-17969).\n","status":"published","published":"2018-02-08T11:30:47Z","modified":"2026-04-16T06:25:37.333031088Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2024:11137-1","title":"p7zip-16.02-11.3 on GA media","description":"These are all security issues fixed in the p7zip-16.02-11.3 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:09:09.865441Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"SUSE-SU-2018:0464-1","title":"Security update for p7zip","description":"\n  \nThis update for p7zip fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2016-1372: Fixed multiple vulnerabilities when processing crafted 7z files (bsc#984650)\n- CVE-2017-17969: Fixed a heap-based buffer overflow in a shrink decoder (bsc#1077725)\n- CVE-2018-5996: Fixed memory corruption in RAR decompression. The complete RAR decoder was removed as it also has license issues (bsc#1077724 bsc#1077978)\n\n","status":"published","published":"2018-02-16T12:45:57Z","modified":"2025-05-02T04:05:08.076424Z","updated_at":"2026-11-02T15:53:44.594517Z"},{"id":"USN-3913-1","title":"p7zip vulnerabilities","description":"It was discovered that p7zip did not correctly handle certain malformed\narchives. If a user or automated system were tricked into processing a specially\ncrafted archive with p7zip, then p7zip could be made to crash, possibly leading\nto abitrary code execution.\n","status":"published","published":"2019-03-21T17:09:19Z","modified":"2026-02-10T04:41:29Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}