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Vulnerability record · CVE-2019-12900 · published 19 June 2019

CVE-2019-12900: Bzip2 out-of-bounds write vulnerability

BBzip · Bzip2

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

9.8 CVSS 3.1 Critical EPSS 8.0% · top 5.4% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 7.5
8.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
46References
17 Jun 2026Last modified by NVD

Description

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.html Third Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153957/FreeBSD-Security-Advisory-FreeBSD-SA-19-18.bzip2.html Third Party AdvisoryVDB Entry
https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc PatchVendor Advisory
https://lists.apache.org/thread.html/ra0adb9653c7de9539b93cc8434143b655f753b9f60580ff260becb2b%40%3Cusers.kafka.apache.o
https://lists.apache.org/thread.html/rce8cd8c30f60604b580ea01bebda8a671a25c9a1629f409fc24e7774%40%3Cuser.flink.apache.or
https://lists.apache.org/thread.html/rda98305669476c4d90cc8527c4deda7e449019dd1fe9936b56671dd4%40%3Cuser.flink.apache.or
https://lists.debian.org/debian-lts-announce/2019/06/msg00021.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00014.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00012.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00018.html Mailing ListThird Party Advisory
https://seclists.org/bugtraq/2019/Aug/4 Mailing ListPatchThird Party Advisory
https://seclists.org/bugtraq/2019/Jul/22 Mailing ListThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc PatchThird Party Advisory
https://support.f5.com/csp/article/K68713584?utm_source=f5support&amp%3Butm_medium=RSS
https://usn.ubuntu.com/4038-1/ Third Party Advisory
https://usn.ubuntu.com/4038-2/ Third Party Advisory
https://usn.ubuntu.com/4146-1/ Third Party Advisory
https://usn.ubuntu.com/4146-2/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html PatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html Mailing ListThird Party Advisory
http://packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.html Third Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153957/FreeBSD-Security-Advisory-FreeBSD-SA-19-18.bzip2.html Third Party AdvisoryVDB Entry
https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc PatchVendor Advisory
https://lists.apache.org/thread.html/ra0adb9653c7de9539b93cc8434143b655f753b9f60580ff260becb2b%40%3Cusers.kafka.apache.o
https://lists.apache.org/thread.html/rce8cd8c30f60604b580ea01bebda8a671a25c9a1629f409fc24e7774%40%3Cuser.flink.apache.or
https://lists.apache.org/thread.html/rda98305669476c4d90cc8527c4deda7e449019dd1fe9936b56671dd4%40%3Cuser.flink.apache.or
https://lists.debian.org/debian-lts-announce/2019/06/msg00021.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00014.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00012.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00018.html Mailing ListThird Party Advisory
https://seclists.org/bugtraq/2019/Aug/4 Mailing ListPatchThird Party Advisory
https://seclists.org/bugtraq/2019/Jul/22 Mailing ListThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-12900), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.