CVE-2019-12900

BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

8.0% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2019-06-19

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• bzip:bzip2
• canonical:ubuntu_linux
• debian:debian_linux
• freebsd:freebsd
• opensuse:leap
• python:python

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html
• http://packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.html

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