Input validation error in libxslt for Libxml2

1) Input validation error

EUVDB-ID: #VU32282

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-1684

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (integer overflow or resource consumption) or possibly have unspecified other impact via a crafted document.

Mitigation

Update to version 1.1.29.

Vulnerable software versions

libxslt: 1.1.0 - 1.1.28

CPE2.3

• cpe:2.3:a:gnome:libxslt:1.1.0:*:*:*:*:libxml2:*:*
• cpe:2.3:a:gnome:libxslt:1.1.1:*:*:*:*:libxml2:*:*
• cpe:2.3:a:gnome:libxslt:1.1.2:*:*:*:*:libxml2:*:*

External links

https://googlechromereleases.blogspot.com/2016/05/stable-channel-update_25.html
https://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html
https://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
https://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html
https://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
https://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html
https://lists.opensuse.org/opensuse-security-announce/2016-05/msg00062.html
https://lists.opensuse.org/opensuse-security-announce/2016-05/msg00063.html
https://lists.opensuse.org/opensuse-security-announce/2016-06/msg00005.html
https://www.debian.org/security/2016/dsa-3590
https://www.debian.org/security/2016/dsa-3605
https://www.securityfocus.com/bid/90876
https://www.securitytracker.com/id/1035981
https://www.ubuntu.com/usn/USN-2992-1
https://access.redhat.com/errata/RHSA-2016:1190
https://bugzilla.redhat.com/show_bug.cgi?id=1340017
https://crbug.com/583171
https://git.gnome.org/browse/libxslt/commit/?id=91d0540ac9beaa86719a05b749219a69baa0dd8d
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SK4YNISS22MJY22YX5I6V2U63QZAUEHA/
https://security.gentoo.org/glsa/201607-07
https://support.apple.com/HT206899
https://support.apple.com/HT206901
https://support.apple.com/HT206902
https://support.apple.com/HT206903
https://support.apple.com/HT206904
https://support.apple.com/HT206905

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.