Buffer overflow in Bzip Bzip2
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.080 (94.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000
Affected products
- Bzip Bzip2
- FreeBSD — versions 11.2, 11.3, 12.0
- Python
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0
- openSUSE Leap — versions 15.0, 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2019/06/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4038-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4038-1/ (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2019/Jul/22 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/07/msg00014.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.FreeBSD.org/advisories/FreeBSD-SA-19:18.bzip2.asc (vendor-advisory, Patch, Third Party Advisory)
- seclists.org/bugtraq/2019/Aug/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4146-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-12900?
- CVE-2019-12900 is a critical-severity vulnerability in Bzip Bzip2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-06-19.
- How severe is CVE-2019-12900?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-12900 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.