CVE-2024-47541 Information

Description

GStreamer is a library for constructing graphs of media-handling components. An OOB-write vulnerability has been identified in the gst_ssa_parse_remove_override_codes function of the gstssaparse.c file. This function is responsible for parsing and removing SSA (SubStation Alpha) style override codes which are enclosed in curly brackets (). The issue arises when a closing curly bracket \ appears before an opening curly bracket \ in the input string. In this case memmove() incorrectly duplicates a substring. With each successive loop iteration the size passed to memmove() becomes progressively larger (strlen(end+1)) leading to a write beyond the allocated memory bounds. This vulnerability is fixed in 1.24.10.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8036.patch https://gstreamer.freedesktop.org/security/sa-2024-0023.html https://securitylab.github.com/advisories/GHSL-2024-228_GStreamer/ GStreamer is a library for constructing graphs of media-handling components. An OOB-write vulnerability has been identified in the gst_ssa_parse_remove_override_codes function of the gstssaparse.c file. This function is responsible for parsing and removing SSA (SubStation Alpha) style override codes which are enclosed in curly brackets ({}). The issue arises when a closing curly bracket }
appears before an opening curly bracket {
in the input string. In this case memmove() incorrectly duplicates a substring. With each successive loop iteration the size passed to memmove() becomes progressively larger (strlen(end+1)) leading to a write beyond the allocated memory bounds. This vulnerability is fixed in 1.24.10.

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5