SB2013041003 - Input validation error in libxslt (Alpine package)
Published: April 10, 2013
Security Bulletin ID
SB2013041003
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2012-6139)
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference and crash) via an (1) empty match attribute in a XSL key to the xsltAddKey function in keys.c or (2) uninitialized variable to the xsltDocumentFunction function in functions.c.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=8e920dd663a42cb6ea964be5ccb031f366f02d17
- https://git.alpinelinux.org/aports/commit/?id=a2e601eb1db7a32b0a38fbdc4f82f099d30b9432
- https://git.alpinelinux.org/aports/commit/?id=41e8966524d8707e6231f55074578038aa6ec2aa
- https://git.alpinelinux.org/aports/commit/?id=449c589ab6a4b056fc997a4fc1474a5f9a3b344a
- https://git.alpinelinux.org/aports/commit/?id=d6422a55cb45a443a665ae96737b0945cfc1a3f6