SB2026080643 - Multiple vulnerabilities in gst-plugins-bad

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Main Vulnerability Database SB2026080643

SB2026080643 - Multiple vulnerabilities in gst-plugins-bad

Published: August 6, 2026 Updated: August 6, 2026

Security Bulletin ID SB2026080643
CSH Severity
High
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 14% Medium 86%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 vulnerabilities.


1) Resource exhaustion (CVE-ID: N/A)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to inefficient regular expression processing with quadratic time complexity in the SRT/WebVTT subtitle parser (subparse) when parsing crafted subtitle files with long lines. A remote attacker can provide a specially crafted subtitle file to cause a denial of service.

This can result in excessive CPU usage and application unresponsiveness during subtitle parsing.


2) Input validation error (CVE-ID: N/A)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the mDVDsub subtitle parser when parsing malformed input files. A remote attacker can supply a specially crafted input file to cause a denial of service.

User interaction is required to open or process a crafted file.


3) Integer overflow (CVE-ID: N/A)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code or cause a denial of service.

The vulnerability exists due to integer overflow in the H.266/VVC parser when parsing malformed H.266 streams. A remote attacker can trick the victim into opening a crafted H.266 media file to execute arbitrary code or cause a denial of service.

The overflow occurs during parsing of profile, tier, and level fields and can lead to a stack-based buffer overflow.


4) Integer overflow (CVE-ID: N/A)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to integer overflow in the AV1 LEB128 parser when parsing malformed AV1 bitstreams. A remote attacker can supply a crafted AV1 media file or stream to cause a denial of service.


5) NULL pointer dereference (CVE-ID: N/A)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the h.264 video parser when parsing a specially crafted h.264 video file. A remote attacker can supply a specially crafted h.264 video file to cause a denial of service.

This occurs when parsing fails partway through during cleanup of allocated structures while freeing partially parsed SPS and MVC data.


6) Integer overflow (CVE-ID: N/A)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to integer overflow in the JPEG 2000 decimator when parsing malformed JPEG 2000 codestreams. A remote attacker can supply a specially crafted JPEG 2000 media file to cause a denial of service.


7) Division by zero (CVE-ID: N/A)

CWE-ID: CWE-369 - Divide By Zero

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to division by zero in the JPEG 2000 decimator when parsing malformed JPEG 2000 codestreams. A remote attacker can supply a specially crafted JPEG 2000 media file to cause a denial of service.


Remediation

Install update from vendor's website.

References