CVE-2015-8540

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.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 15.57% Top 10%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://sourceforge.net/projects/libpng/files/libpng10/1.0.66/ patch
https://security.gentoo.org/glsa/201611-08 vendor advisory
http://www.openwall.com/lists/oss-security/2015/12/11/2 mailing list
http://sourceforge.net/p/libpng/code/ci/d9006f683c641793252d92254a75ae9b815b42ed/
http://sourceforge.net/projects/libpng/files/libpng15/1.5.26/ patch
https://access.redhat.com/errata/RHSA-2016:1430 vendor advisory
http://www.openwall.com/lists/oss-security/2015/12/10/6 mailing list
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://sourceforge.net/projects/libpng/files/libpng14/1.4.19/ patch
http://www.openwall.com/lists/oss-security/2015/12/11/1 mailing list
http://www.openwall.com/lists/oss-security/2015/12/10/7 mailing list
http://sourceforge.net/projects/libpng/files/libpng12/1.2.56/ patch
http://www.debian.org/security/2016/dsa-3443 vendor advisory
http://sourceforge.net/p/libpng/bugs/244/
http://www.securityfocus.com/bid/80592 vdb entry
http://www.openwall.com/lists/oss-security/2015/12/17/10 mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174435.html vendor advisory
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E mailing list
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2015-8540?
CVE-2015-8540 has been scored as a high severity vulnerability.
How to fix CVE-2015-8540?
To fix CVE-2015-8540, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8540 being actively exploited in the wild?
It is possible that CVE-2015-8540 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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