CVE-2019-12900
criticalBZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.
Vendor / product: Bzip — bzip2
BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2019-06-19 23:15
Modified: 2026-10-14 07:16
NVD status: Modified
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
bzip / bzip2 ≤1.0.6
debian / debian_linux 8.0
opensuse / leap 15.0, 15.1
canonical / ubuntu_linux 12.04, 14.04, 16.04, 18.04, 19.04
freebsd / freebsd 11.2, 11.3, 12.0
python / python ≥3.7.0 <3.7.13, ≥3.8.0 <3.8.13, ≥3.9.0 <3.9.11, ≥3.10.0 <3.10.3
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc
Vendor advisory: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc
Patch / mitigation: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc
Patch / mitigation: https://seclists.org/bugtraq/2019/Aug/4
Patch / mitigation: https://security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc
Patch / mitigation: https://www.oracle.com/security-alerts/cpuoct2020.html
Patch / mitigation: https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc
Patch / mitigation: https://seclists.org/bugtraq/2019/Aug/4
Patch / mitigation: https://security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc
Patch / mitigation: https://www.oracle.com/security-alerts/cpuoct2020.html
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html cve@mitre.org
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html cve@mitre.org
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.html cve@mitre.org
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.html cve@mitre.org
- http://packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.html cve@mitre.org
- http://packetstormsecurity.com/files/153957/FreeBSD-Security-Advisory-FreeBSD-SA-19-18.bzi... cve@mitre.org
- https://gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962c... cve@mitre.org
- https://lists.apache.org/thread.html/ra0adb9653c7de9539b93cc8434143b655f753b9f60580ff260be... cve@mitre.org
- https://lists.apache.org/thread.html/rce8cd8c30f60604b580ea01bebda8a671a25c9a1629f409fc24e... cve@mitre.org
- https://lists.apache.org/thread.html/rda98305669476c4d90cc8527c4deda7e449019dd1fe9936b5667... cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2019/06/msg00021.html cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2019/07/msg00014.html cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2019/10/msg00012.html cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2019/10/msg00018.html cve@mitre.org
- https://seclists.org/bugtraq/2019/Aug/4 cve@mitre.org
- https://seclists.org/bugtraq/2019/Jul/22 cve@mitre.org
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc cve@mitre.org
- https://support.f5.com/csp/article/K68713584?utm_source=f5support&%3Butm_medium=RSS cve@mitre.org
- https://usn.ubuntu.com/4038-1/ cve@mitre.org
- https://usn.ubuntu.com/4038-2/ cve@mitre.org
- https://usn.ubuntu.com/4146-1/ cve@mitre.org
- https://usn.ubuntu.com/4146-2/ cve@mitre.org
- https://www.oracle.com/security-alerts/cpuoct2020.html cve@mitre.org
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html af854a3a-2127-422b-91ae-364da2661108
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html af854a3a-2127-422b-91ae-364da2661108
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗