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VuXML IDDescription
3c7edc7a-f680-11e9-a87f-a4badb2f4699FreeBSD -- Multiple vulnerabilities in bzip2

Problem Description:

The decompressor used in bzip2 contains a bug which can lead to an out-of-bounds write when processing a specially crafted bzip2(1) file.

bzip2recover contains a heap use-after-free bug which can be triggered when processing a specially crafted bzip2(1) file.

Impact:

An attacker who can cause maliciously crafted input to be processed may trigger either of these bugs. The bzip2recover bug may cause a crash, permitting a denial-of-service. The bzip2 decompressor bug could potentially be exploited to execute arbitrary code.

Note that some utilities, including the tar(1) archiver and the bspatch(1) binary patching utility (used in portsnap(8) and freebsd-update(8)) decompress bzip2(1)-compressed data internally; system administrators should assume that their systems will at some point decompress bzip2(1)-compressed data even if they never explicitly invoke the bunzip2(1) utility.


Discovery 2019-08-06
Entry 2019-10-24
FreeBSD
ge 12.0 lt 12.0_9

ge 11.3 lt 11.3_2

ge 11.2 lt 11.2_13

CVE-2016-3189
CVE-2019-1290
SA-19:18.bzip2