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FreeBSD: VID-76E59F55-4F7A-4887-BCB0-11604004163A (CVE-2017-9048): libxml2 -- Multiple Issues

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FreeBSD: VID-76E59F55-4F7A-4887-BCB0-11604004163A (CVE-2017-9048): libxml2 -- Multiple Issues

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
05/10/2017
Created
07/25/2018
Added
12/14/2017
Modified
05/07/2019

Description

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.

Solution(s)

  • freebsd-upgrade-package-libxml2

References

  • DSA-3952
  • CVE-2017-9048
  • USN-3424-1
  • USN-3424-2

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