SB2016091417 - Input validation error in gd (Alpine package)
Published: September 14, 2016
Security Bulletin ID
SB2016091417
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-2016-6128)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The gdImageCropThreshold function in gd_crop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=262e2cf8cb01d5ffc1f8c10a3148df77981d5564
- https://git.alpinelinux.org/aports/commit/?id=d1df1621cd8cdf645c22b9cc6256957208c6ff69
- https://git.alpinelinux.org/aports/commit/?id=b977ac9875306ca4c7da72609ffc99410c1cb123
- https://git.alpinelinux.org/aports/commit/?id=4b52b89e94d238b1bb241c3c3f7a3d546b546399