{"id":"CVE-2026-59691","aliases":["ALSA-2026:47179","ALSA-2026:47180","ALSA-2026:47731","CLSA-2026-1790175495","CLSA-2026-1790239010","DEBIAN-CVE-2026-59691","EUVD-2026-42569","GHSA-g4ff-54hw-hj6r","RHSA-2026:47179","RHSA-2026:47180","RHSA-2026:47731","RHSA-2026:54658","RHSA-2026:54659","RHSA-2026:54660","RHSA-2026:54664","RHSA-2026:54665","RHSA-2026:54752","RHSA-2026:56658","RHSA-2026:56772","RHSA-2026:62532","RLSA-2026:47179","RLSA-2026:47180","RLSA-2026:47731","UBUNTU-CVE-2026-59691"],"status":"published","title":"Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebuffer","description":"A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. 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When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.","status":"published","published":"2026-07-09T12:30:28Z","modified":"2026-09-02T09:32:37Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:11:16.032844Z"}],"nvd":[{"id":"CVE-2026-59691","description":"A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.","status":"published","published":"2026-07-09T11:16:41.657Z","modified":"2026-11-04T23:17:53.77Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-05T01:45:09.958441Z"}],"osv":[{"id":"DEBIAN-CVE-2026-59691","description":"A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.","status":"published","published":"2026-07-09T11:16:41.657Z","modified":"2026-11-05T09:47:39.219200459Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-05T13:31:24.64316Z"},{"id":"RHSA-2026:47179","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-04T10:25:50Z","modified":"2026-09-11T10:10:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:20.984762Z"},{"id":"RHSA-2026:47180","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-07-29T10:11:40Z","modified":"2026-09-11T10:10:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:20.984762Z"},{"id":"RHSA-2026:47731","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-07-30T10:17:46Z","modified":"2026-09-11T10:10:09Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:20.984762Z"},{"id":"RHSA-2026:54658","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:02Z","modified":"2026-09-11T10:11:36Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:54659","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:03Z","modified":"2026-09-11T10:11:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:54660","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:03Z","modified":"2026-09-11T10:11:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:54664","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:04Z","modified":"2026-09-11T10:11:38Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:54665","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:05Z","modified":"2026-09-11T10:11:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:54752","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-14T10:17:07Z","modified":"2026-09-11T10:11:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:56658","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-19T10:23:01Z","modified":"2026-09-11T10:12:08Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:56772","title":"Red Hat Security Advisory: gstreamer1-plugins-bad-free security update","status":"published","published":"2026-08-19T10:23:01Z","modified":"2026-09-11T10:12:09Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RHSA-2026:62532","title":"Red Hat Security Advisory: gstreamer-plugins-bad-free security update","status":"published","published":"2026-09-02T10:22:33Z","modified":"2026-09-11T10:13:52Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.91255Z"},{"id":"RLSA-2026:47179","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.\n\nSecurity Fix(es):\n\n* gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n\n* gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-08-03T12:03:50.556944Z","modified":"2026-08-03T12:30:05.422211827Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.111232Z"},{"id":"RLSA-2026:47180","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.\n\nSecurity Fix(es):\n\n* gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n\n* gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-07-29T18:06:20.508719Z","modified":"2026-07-29T18:25:49.545648049Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.111232Z"},{"id":"RLSA-2026:47731","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.\n\nSecurity Fix(es):\n\n* gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n\n* gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-07-30T06:02:59.147545Z","modified":"2026-07-30T06:30:06.064718613Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.111232Z"},{"id":"UBUNTU-CVE-2026-59691","description":"A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.","status":"published","published":"2026-07-09T11:16:00Z","modified":"2026-10-17T12:56:00.395985577Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:41.911783Z"},{"id":"ALSA-2026:47179","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.  \n\nSecurity Fix(es):  \n\n  * gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n  * gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-07-28T00:00:00Z","modified":"2026-10-29T11:32:23.125817924Z","updated_at":"2026-11-02T15:27:54.753319Z"},{"id":"ALSA-2026:47180","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.  \n\nSecurity Fix(es):  \n\n  * gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n  * gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-07-28T00:00:00Z","modified":"2026-10-29T11:30:32.338486963Z","updated_at":"2026-11-02T15:27:54.753319Z"},{"id":"ALSA-2026:47731","title":"Important: gstreamer1-plugins-bad-free security update","description":"GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-bad-free package contains a collection of plug-ins for GStreamer.  \n\nSecurity Fix(es):  \n\n  * gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)\n  * gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-07-29T00:00:00Z","modified":"2026-10-29T11:02:24.699007607Z","updated_at":"2026-11-02T15:27:54.753319Z"},{"id":"CLSA-2026-1790175495","title":"gstreamer1-plugins-bad-free: Fix of 2 CVEs","description":"- CVE-2026-59691: rfbsrc: write pixels at the negotiated bytes-per-pixel in\n  rfb_decoder_fill_rectangle and read colour values through the new\n  rfb_decoder_get_pixel helper, instead of always using 32-bit accesses\n- CVE-2026-59692: dtlsconnection: heap-allocate the peer certificate subject DN\n  buffer from the X509_NAME_print_ex length in openssl_verify_callback, instead\n  of printing into a fixed 2048-byte stack buffer","status":"published","published":"2026-09-23T14:58:27Z","modified":"2026-10-26T09:31:35.746184215Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1790239010","title":"gstreamer1-plugins-bad-free: Fix of 2 CVEs","description":"- CVE-2026-59691: fix a heap buffer overflow in the rfbsrc RRE, CoRRE and\n  hextile decoders, which wrote 32-bit pixels into a buffer sized for the\n  negotiated bits-per-pixel; write through the correct type for 1, 2 and\n  4 bytespp and reject any other format, and read colour values at the\n  negotiated width at all seven call sites instead of a fixed four bytes\n- CVE-2026-59692: fix a stack buffer overflow in the DTLS connection\n  handler, which printed the peer certificate subject DN into a fixed\n  2048-byte stack buffer; allocate it from the returned length instead\n  and bound the read","status":"published","published":"2026-09-24T08:37:01Z","modified":"2026-10-26T09:30:51.507169096Z","updated_at":"2026-11-02T15:43:48.28229Z"}]}}