high
7.5
CWE
416 125
Advisory Published
Updated

CVE-2017-9049: Use After Free

First published: Thu May 18 2017(Updated: )

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.

Credit: Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore Wei Lei Liu Yang - Nanyang Technological University in Singapore cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple iOS<11
11
Apple tvOS<11
11
Apple watchOS<4
4
Apple iTunes for Windows<12.7
12.7
Apple iCloud for Windows<7.0
7.0
Apple macOS High Sierra<10.13
10.13
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
debian/libxml2<=2.9.4+dfsg1-2.2<=2.9.1+dfsg1-5
2.9.4+dfsg1-3.1
2.9.4+dfsg1-2.2+deb9u1
2.9.1+dfsg1-5+deb8u5
Xmlsoft Libxml2=2.9.4
debian/libxml2
2.9.4+dfsg1-7+deb10u4
2.9.4+dfsg1-7+deb10u6
2.9.10+dfsg-6.7+deb11u4
2.9.14+dfsg-1.3~deb12u1
2.9.14+dfsg-1.3

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2017-9049?

    CVE-2017-9049 is a vulnerability in the libxml2 library that could cause programs to crash.

  • Which software versions are affected by CVE-2017-9049?

    CVE-2017-9049 affects various versions of Apple tvOS, iOS, libxml2 on Debian, macOS High Sierra, iTunes for Windows, watchOS, iCloud for Windows, and other versions of libxml2 on Debian.

  • What is the severity of CVE-2017-9049?

    CVE-2017-9049 has a severity score of 7.5, which is considered high.

  • How can I fix CVE-2017-9049?

    To fix CVE-2017-9049, you should update to the latest version of the affected software or apply the recommended patches.

  • Where can I find more information about CVE-2017-9049?

    You can find more information about CVE-2017-9049 on the Apple support website and the Bugzilla page.

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