Red Hat Security Advisory: gstreamer1-plugins-bad-free security update

Fixed packages 6

Vulnerabilities 4

• High 8.8
  CVE-2026-52720

  Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb

  A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebu…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 6 Linux Debian Ubuntu
  Jun 15, 2026
• High 7.1
  CVE-2026-52719

  Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoder

  An out-of-bounds read vulnerability was found in the VA JPEG decoder in GStreamer's gst-plugins-bad. The JPEG parser reads a segment length value from the bitstream without validating it against available data. A remote attacker could trick a user into openin…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu
  Jun 15, 2026
• High 7.1
  CVE-2026-52722

  Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handling

  A signed integer overflow vulnerability was found in GStreamer's VMnc decoder. A crafted VMnc stream with large cursor dimensions can overflow signed integer payload-size arithmetic, bypassing a length check and leading to out-of-bounds reads. A remote attack…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 6 Linux Debian Ubuntu
  Jun 15, 2026
• Medium 6.5
  CVE-2026-52718

  Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion

  A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote atta…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu
  Jun 15, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486328
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486353
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486731
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486733
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_47717.json
• report
  https://access.redhat.com/security/cve/CVE-2026-52718
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-52718
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-52718
• article
  https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103
• report
  https://access.redhat.com/security/cve/CVE-2026-52719
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-52719
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-52719
• article
  https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5104
• report
  https://access.redhat.com/security/cve/CVE-2026-52720
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-52720
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-52720
• article
  https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5105
• report
  https://access.redhat.com/security/cve/CVE-2026-52722
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-52722
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-52722
• article
  https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5107