CVE-2026-52720

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion (CVE-2026-52718)

• gstreamer1-plugins-bad-free: GStreamer: Out-of-bounds read via JPEG segment length validation in VA decoder (CVE-2026-52719)

• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)

• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion (CVE-2026-52718)

• gstreamer1-plugins-bad-free: GStreamer: Out-of-bounds read via JPEG segment length validation in VA decoder (CVE-2026-52719)

• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)

• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)

• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

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 framebuffer. A remote attacker could set up a malicious VNC server and trick a user into connecting, resulting in an out-of-bounds heap write that could lead to code execution or a crash.

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion (CVE-2026-52718)
• gstreamer1-plugins-bad-free: GStreamer: Out-of-bounds read via JPEG segment length validation in VA decoder (CVE-2026-52719)
• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)
• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Denial of service via AV1 tile_list_obu parser byte/bit confusion (CVE-2026-52718)
• gstreamer1-plugins-bad-free: GStreamer: Out-of-bounds read via JPEG segment length validation in VA decoder (CVE-2026-52719)
• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)
• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

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.

Security Fix(es):

• gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb (CVE-2026-52720)
• gstreamer1-plugins-bad-free: GStreamer: Signed integer overflow in VMnc decoder cursor payload handling (CVE-2026-52722)

For 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.

• CVE-2026-52718: fix av1parser bytes/bits confusion when parsing tile data size
• CVE-2026-52719: fix vajpegdecoder out-of-bounds read on invalid JPEG segment length
• CVE-2026-52720: fix librfb framebuffer rectangle bounds check (dimensions not area)
• CVE-2026-52722: fix vmnc signed integer overflow in cursor dimension arithmetic

• CVE-2026-52722: fix signed integer overflow in VMnc decoder cursor payload size arithmetic that bypassed a rectangle length check
• CVE-2026-52720: fix heap buffer overflow in librfb by validating framebuffer update rectangle dimensions against the framebuffer size

• CVE-2026-52720: fix heap buffer overflow in librfb by clipping framebuffer update rectangles to the framebuffer size
• CVE-2026-52722: fix signed integer overflow in VMnc decoder cursor payload size arithmetic, preventing out-of-bounds reads

These are all security issues fixed in the gstreamer-plugins-bad-1.28.4+24-1.1 package on the GA media of openSUSE Tumbleweed.

This update for gstreamer-plugins-bad fixes the following issues

• CVE-2026-12891: unchecked aspect_ratio_idc value used as an array index in the H.266 parser could cause a global out- of-bounds read (bsc#1268872).
• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53701: multi-slice-in-tile partitions without slice index bounds checks could trigger an out-of-bounds write (bsc#1268172).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues

• CVE-2026-12891: unchecked aspect_ratio_idc value used as an array index in the H.266 parser could cause a global out- of-bounds read (bsc#1268872).
• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53701: multi-slice-in-tile partitions without slice index bounds checks could trigger an out-of-bounds write (bsc#1268172).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues

• CVE-2026-12891: unchecked aspect_ratio_idc value used as an array index in the H.266 parser could cause a global out- of-bounds read (bsc#1268872).
• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53701: multi-slice-in-tile partitions without slice index bounds checks could trigger an out-of-bounds write (bsc#1268172).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues

• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues:

• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues

• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check (bsc#1271051).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer (bsc#1268410).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).

This update for gstreamer-plugins-bad fixes the following issues:

• CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
• CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-of-bounds write (bsc#1268406).
• CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read (bsc#1268408).
• CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer payload-size arithmetic (bsc#1268410).
• CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow (bsc#1268168).
• CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a stack buffer overflow (bsc#1271168).