SB2024061389 - Privilege escalation in OpenPrinting cupsd
Published: June 13, 2024 Updated: February 7, 2025
Security Bulletin ID
SB2024061389
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) UNIX symbolic link following (CVE-ID: CVE-2024-35235)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and make it world-writable.
Successful exploitation of this vulnerability may result in privilege escalation.
Remediation
Install update from vendor's website.
References
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-vvwp-mv6j-hw6f
- https://github.com/OpenPrinting/cups/commit/ff1f8a623e090dee8a8aadf12a6a4b25efac143d
- https://git.launchpad.net/ubuntu/+source/apparmor/tree/profiles/apparmor.d/abstractions/user-tmp#n21
- https://github.com/OpenPrinting/cups/blob/aba917003c8de55e5bf85010f0ecf1f1ddd1408e/cups/http-addr.c#L229-L240
- http://www.openwall.com/lists/oss-security/2024/06/11/1
- http://www.openwall.com/lists/oss-security/2024/06/12/4
- http://www.openwall.com/lists/oss-security/2024/06/12/5
- https://github.com/OpenPrinting/cups/releases/tag/v2.4.9