High severity · published Apr 14, 2016
CVE-2015-8540
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,…
8.8
CVSS
6.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
6.0 · source: NVD
EL
Enterprise Linux Desktop Supplementary · Redhat
5.0; 6.0 · source: NVD
EL
Enterprise Linux Hpc Node · Redhat
6.0 · source: NVD
EL
Enterprise Linux Server Supplementary · Redhat
5.0; 6.0 · source: NVD
EL
Enterprise Linux Workstation Supplementary · Redhat
6.0 · source: NVD
FE
Fedora · Fedoraproject
23 · source: NVD
LI
Libpng · Libpng
1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8540
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8540
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174435.html
sourceforge.net
http://sourceforge.net/p/libpng/bugs/244/
sourceforge.net
http://sourceforge.net/p/libpng/code/ci/d9006f683c641793252d92254a75ae9b815b42ed/
Patch
http://sourceforge.net/projects/libpng/files/libpng10/1.0.66/
Patch
http://sourceforge.net/projects/libpng/files/libpng12/1.2.56/
Patch
http://sourceforge.net/projects/libpng/files/libpng14/1.4.19/
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