CVE-2017-9049

Publication date 18 May 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxml2	17.04 zesty	Fixed 2.9.4+dfsg1-2.2ubuntu0.1
	16.10 yakkety	Ignored
	16.04 LTS xenial	Fixed 2.9.3+dfsg1-1ubuntu0.3
	14.04 LTS trusty	Fixed 2.9.1+dfsg1-3ubuntu4.10

Notes

mdeslaur

probably same issue as CVE-2017-9050

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libxml2	Upstream: ?id=e26

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H