CVE-2019-12900: bzip bzip2 Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
AliasesALPINE-CVE-2019-12900MGASA-2019-0338SUSE-SU-2019:14139-1SUSE-SU-2019:1846-1SUSE-SU-2019:2004-1SUSE-SU-2019:2013-1SUSE-SU-2019:2013-2RHSA-2024:10803RHSA-2024:8922RHSA-2025:0733RHSA-2025:0925UBUNTU-CVE-2019-12900DEBIAN-CVE-2019-12900openSUSE-SU-2019:1781-1openSUSE-SU-2019:1918-1
Published 19-06-2019Last modified 14-10-2026
Vulnerability summary
CVE-2019-12900 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in bzip bzip2. EPSS estimates a 7.98% chance of exploitation in the next 30 days, higher than 94.6% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
7.98%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 21 · Related 20DLA-1833-1DLA-1953-1MGASA-2019-0328OPENSUSE-SU-2019:2595-1OPENSUSE-SU-2019:2597-1OPENSUSE-SU-2020:2268-1OPENSUSE-SU-2020:2276-1OPENSUSE-SU-2024:10667-1OPENSUSE-SU-2024:10685-1SUSE-SU-2019:14122-1SUSE-SU-2019:14231-1SUSE-SU-2019:1955-1SUSE-SU-2019:3053-1SUSE-SU-2019:3066-1SUSE-SU-2020:3729-1SUSE-SU-2020:3790-1SUSE-SU-2020:3918-1USN-4038-1USN-4038-2USN-4146-1USN-4146-2USN-4038-3USN-4038-4
Timeline
- 19-06-2019PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.
CVSS metrics
8 scores · 6 sources · 3 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources6 sources · 4.4–9.8
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · Red hatEcosystem advisory · calculated4.4MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Critical 9.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
7.98%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 7.98% on 18-09-2026
18-09-202618-10-2026
EPSS score7.98%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse22 products
- bzip2&distro=HPE Helion OpenStack 8< 1.0.6-30.8.1
- bzip2&distro=SUSE Enterprise Storage 4< 1.0.6-30.8.1
- bzip2&distro=SUSE Enterprise Storage 5< 1.0.6-30.8.1
- bzip2&distro=SUSE Linux Enterprise Desktop 12 SP4< 1.0.6-30.8.1
- bzip2&distro=SUSE Linux Enterprise Module for Basesystem 15< 1.0.6-5.6.1 | < 1.0.6-5.9.1
Redhat6 products
- bzip2< 0:1.0.8-8.el9_4.1 | < 0:1.0.6-27.el8_10 | < 0:1.0.6-28.el8_10 | < 0:1.0.8-10.el9_5
- bzip2-debuginfo< 0:1.0.8-8.el9_4.1 | < 0:1.0.6-27.el8_10 | < 0:1.0.6-28.el8_10 | < 0:1.0.8-10.el9_5
- bzip2-debugsource< 0:1.0.8-8.el9_4.1 | < 0:1.0.6-27.el8_10 | < 0:1.0.6-28.el8_10 | < 0:1.0.8-10.el9_5
- bzip2-devel< 0:1.0.8-8.el9_4.1 | < 0:1.0.6-27.el8_10 | < 0:1.0.6-28.el8_10 | < 0:1.0.8-10.el9_5
- bzip2-libs< 0:1.0.8-8.el9_4.1 | < 0:1.0.6-27.el8_10 | < 0:1.0.6-28.el8_10 | < 0:1.0.8-10.el9_5
Debian3 products
- bzip2< 1.0.6-9.1
- clamav< 0.101.4+dfsg-1
- debian_linuxEOL8.0
Opensuse3 products
- leapEOL15.0 | 15.1
- bzip2&distro=openSUSE Leap 15.0< 1.0.6-lp151.5.6.1 | < 1.0.6-lp151.5.9.1
- bzip2&distro=openSUSE Leap 15.1< 1.0.6-lp151.5.6.1 | < 1.0.6-lp151.5.9.1
Ubuntu2 products
- bzip2< 1.0.6-5ubuntu0.1~esm2 | < 1.0.6-8ubuntu0.1 | < 1.0.6-8.1ubuntu0.1
- clamav< 0.101.4+dfsg-0ubuntu0.14.04.1+esm1 | < 0.101.4+dfsg-0ubuntu0.16.04.1 | < 0.101.4+dfsg-0ubuntu0.18.04.1
Alpine1 product
- bzip2< 1.0.6-r7
Bzip1 product
- bzip2≤ 1.0.6
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 19.04
Freebsd1 product
- freebsdEOL11.2 | 11.2:p10 | 11.2:p11 | 11.2:p12 | 11.2:p2 | 11.2:p3 | 11.2:p4 | 11.2:p5 | 11.2:p6 | 11.2:p7 | 11.2:p8 | 11.2:p9 | 11.2:rc3 | 11.3 | 11.3:p1 | 12.0 | 12.0:p1 | 12.0:p2 | 12.0:p3 | 12.0:p4 | 12.0:p5 | 12.0:p6 | 12.0:p7 | 12.0:p8
Mageia1 product
- bzip2< 1.0.8-1.mga7
Python1 product
- 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
11 vendors · 42 products
References
67 links- lists.debian.org/debian-lts-announce/2019/06/msg00021.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/07/msg00014.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00040.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- security.freebsd.org/advisories/FreeBSD-SA-19:18.bzip2.ascVendor AdvisoryX Refsource FREEBSDPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00050.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 67 references
- lists.debian.org/debian-lts-announce/2019/10/msg00012.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/10/msg00018.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00078.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00000.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- packetstormsecurity.com/files/153644/Slackware-Security-Advisory-bzip2-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/153957/FreeBSD-Security-Advisory-FreeBSD-SA-19-18.bzip2.htmlX Refsource MISCThird Party AdvisoryVDB Entry
- gitlab.com/federicomenaquintero/bzip2/commit/74de1e2e6ffc9d51ef9824db71a8ffee5962cdbcX Refsource MISCPatchVendor Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory