CVE-2015-8540

HIGH

Description

Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174435.html

http://sourceforge.net/p/libpng/bugs/244/

http://sourceforge.net/p/libpng/code/ci/d9006f683c641793252d92254a75ae9b815b42ed/

http://sourceforge.net/projects/libpng/files/libpng10/1.0.66/

http://sourceforge.net/projects/libpng/files/libpng12/1.2.56/

http://sourceforge.net/projects/libpng/files/libpng14/1.4.19/

http://sourceforge.net/projects/libpng/files/libpng15/1.5.26/

http://www.debian.org/security/2016/dsa-3443

http://www.openwall.com/lists/oss-security/2015/12/10/6

http://www.openwall.com/lists/oss-security/2015/12/10/7

http://www.openwall.com/lists/oss-security/2015/12/11/1

http://www.openwall.com/lists/oss-security/2015/12/11/2

http://www.openwall.com/lists/oss-security/2015/12/17/10

http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html

http://www.securityfocus.com/bid/80592

https://access.redhat.com/errata/RHSA-2016:1430

https://security.gentoo.org/glsa/201611-08

Details

Source: MITRE

Published: 2016-04-14

Updated: 2017-11-04

Type: CWE-189

Risk Information

CVSS v2.0

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3.0

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH