Out-of-bounds Read in Libarchive
CVE-2019-19221
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.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (47.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Libarchive — versions 3.4.0
- Canonical Ubuntu_linux — versions 16.04, 18.04, 19.10
- Debian Debian_linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 32
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory, Patch, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19221?
- CVE-2019-19221 is a medium-severity vulnerability in Libarchive, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2019-11-21.
- How severe is CVE-2019-19221?
- Medium severity. CVSS v3 base score is 5.5 out of 10.