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FreeBSD: VID-CE808022-8EE6-11E6-A590-14DAE9D210B8: FreeBSD -- Heap overflow vulnerability in bspatch

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FreeBSD: VID-CE808022-8EE6-11E6-A590-14DAE9D210B8: FreeBSD -- Heap overflow vulnerability in bspatch

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/10/2016
Created
07/25/2018
Added
11/14/2016
Modified
09/19/2017

Description

Problem Description:

The implementation of bspatch is susceptible to integer

overflows with carefully crafted input, potentially allowing

an attacker who can control the patch file to write at

arbitrary locations in the heap. This issue was partially

addressed in FreeBSD-SA-16:25.bspatch, but some possible

integer overflows remained.

Impact:

An attacker who can control the patch file can cause a

crash or run arbitrary code under the credentials of the

user who runs bspatch, in many cases, root.

Solution(s)

  • freebsd-upgrade-base-10_1-release-p40
  • freebsd-upgrade-base-10_2-release-p23
  • freebsd-upgrade-base-10_3-release-p10
  • freebsd-upgrade-base-11_0-release-p1
  • freebsd-upgrade-base-9_3-release-p48

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