#VU82373 Information disclosure in libpng - CVE-2015-7981
Vulnerability identifier: #VU82373
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2015-7981
CWE-ID:
CWE-200
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libpng
Universal components / Libraries /
Libraries used by multiple products
Vendor: libpng
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker can obtain sensitive process memory information via crafted tIME chunk data in an image file, which triggers an out-of-bounds read.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
libpng: 1.0.0a - 1.0.63, 1.2.0 - 1.2.53, 1.4.0 - 1.4.16
External links
https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172620.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172647.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172663.html
https://lists.opensuse.org/opensuse-security-announce/2015-11/msg00033.html
https://lists.opensuse.org/opensuse-updates/2015-11/msg00160.html
https://rhn.redhat.com/errata/RHSA-2015-2594.html
https://rhn.redhat.com/errata/RHSA-2015-2595.html
https://sourceforge.net/p/libpng/bugs/241/
https://sourceforge.net/projects/libpng/files/libpng10/1.0.64/
https://sourceforge.net/projects/libpng/files/libpng12/1.2.54/
https://sourceforge.net/projects/libpng/files/libpng14/1.4.17/
https://www.debian.org/security/2015/dsa-3399
https://www.openwall.com/lists/oss-security/2015/10/26/1
https://www.openwall.com/lists/oss-security/2015/10/26/3
https://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://www.securityfocus.com/bid/77304
https://www.securitytracker.com/id/1034393
https://www.ubuntu.com/usn/USN-2815-1
https://access.redhat.com/errata/RHSA-2016:1430
https://security.gentoo.org/glsa/201611-08
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
