Vulnerability Details : CVE-2019-19221
Potential exploit
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.
Products affected by CVE-2019-19221
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:a:libarchive:libarchive:3.4.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-19221
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 22 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-19221
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2019-19221
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-19221
-
https://lists.debian.org/debian-lts-announce/2022/04/msg00020.html
[SECURITY] [DLA 2987-1] libarchive security updateMailing List;Third Party Advisory
-
https://github.com/libarchive/libarchive/issues/1276
bsdtar: An error in archive_wstring_append_from_mbs() (archive_string.c) allows out-of-bounds read memory access and subsequently cause a crash · Issue #1276 · libarchive/libarchive · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html
[SECURITY] [DLA 3202-1] libarchive security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RHFV25AVTASTWZRF3KTSL357AQ6TYHM4/
[SECURITY] Fedora 32 Update: libarchive-3.4.2-1.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/libarchive/libarchive/commit/22b1db9d46654afc6f0c28f90af8cdc84a199f41
Bugfix and optimize archive_wstring_append_from_mbs() · libarchive/libarchive@22b1db9 · GitHubPatch;Third Party Advisory
-
https://usn.ubuntu.com/4293-1/
USN-4293-1: libarchive vulnerabilities | Ubuntu security noticesPatch;Third Party Advisory
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