FreeBSD : libpng buffer overflow in png_set_PLTE (1886e195-8b87-11e5-90e7-b499baebfeaf)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

libpng reports :

CVE for a vulnerability in libpng, all versions, in the
png_set_PLTE/png_get_PLTE functions. These functions failed to check
for an out-of-range palette when reading or writing PNG files with a
bit_depth less than 8. Some applications might read the bit depth from
the IHDR chunk and allocate memory for a 2^N entry palette, while
libpng can return a palette with up to 256 entries even when the bit
depth is less than 8.

See also :

http://www.openwall.com/lists/oss-security/2015/11/12/2
http://www.openwall.com/lists/oss-security/2015/12/03/6
http://www.nessus.org/u?a6df4c38

Solution :

Update the affected package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 86876 ()

Bugtraq ID:

CVE ID: CVE-2015-8126
CVE-2015-8472

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