Public Date:
871700: CVE-2012-4564 libtiff: Missing return value check in ppm2tiff leading to heap-buffer overflow when reading a tiff file

The MITRE CVE dictionary describes this issue as:

ppm2tiff does not check the return value of the TIFFScanlineSize function, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted PPM image that triggers an integer overflow, a zero-memory allocation, and a heap-based buffer overflow.

Find out more about CVE-2012-4564 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (libtiff) RHSA-2012:1590 2012-12-18
Red Hat Enterprise Linux version 5 (libtiff) RHSA-2012:1590 2012-12-18


This issue was discovered by Huzaifa S. Sidhpurwala of Red Hat Security Response Team.