CVE-2019-19221: canonical ubuntu_linux Out-of-bounds Read
CVSS: 5.5v3.1MediumModified
AliasesALPINE-CVE-2019-19221SUSE-SU-2021:3722-1RHSA-2020:4443UBUNTU-CVE-2019-19221USN-4293-1DEBIAN-CVE-2019-19221
Published 21-11-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-19221 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.66%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 21-11-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Libarchive 3.4.0, archive_wstring_append_from_mbs in archive_string.c has an out-of-bounds read because of an incorrect mbrtowc or mbtowc call. For example, bsdtar crashes via a crafted archive.
CVSS metrics
6 scores · 5 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSources5 sources · 5.5–6.5
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.66%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
0.00 pp
From 0.66% on 18-09-2026
18-09-202618-10-2026
EPSS score0.66%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibarchive
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Redhat8 products
- bsdcat-debuginfo< 0:3.3.2-9.el8
- bsdcpio-debuginfo< 0:3.3.2-9.el8
- bsdtar< 0:3.3.2-9.el8
- bsdtar-debuginfo< 0:3.3.2-9.el8
- libarchive< 0:3.3.2-9.el8
Suse3 products
- libarchive&distro=SUSE Linux Enterprise Server 12 SP5< 3.3.3-32.5.1
- libarchive&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 3.3.3-32.5.1
- libarchive&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 3.3.3-32.5.1
Debian2 products
- libarchive< 3.4.2-1
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- libarchive< 3.4.2-r0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.10
Fedoraproject1 product
- fedoraEOL32
Libarchive1 product
- libarchive3.4.0
Ubuntu1 product
- libarchive< 3.1.2-7ubuntu2.8+esm4 | < 3.4.0-1ubuntu2 | < 3.1.2-11ubuntu0.16.04.8 | < 3.2.2-3.1ubuntu0.6
8 vendors · 18 products
References
26 links- github.com/libarchive/libarchive/commit/22b1db9d46654afc6f0c28f90af8cdc84a199f41PatchThird Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
