SB2013041207 - NULL pointer dereference in freetype (Alpine package)
Published: April 12, 2013
Security Bulletin ID
SB2013041207
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) NULL pointer dereference (CVE-ID: CVE-2012-5668)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via vectors related to BDF fonts and the improper handling of an "allocation error" in the bdf_free_font function.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=439d36cfdd6ea8973f92ef61838fcfe55d82a897
- https://git.alpinelinux.org/aports/commit/?id=303216ea7b9da1c5b244834d6065c35e9418680c
- https://git.alpinelinux.org/aports/commit/?id=946bb72faaec08bc5cbddde31ca106f0a9611026
- https://git.alpinelinux.org/aports/commit/?id=2759bc59c53966b904d43034459b880cab3f47f7