CVE-2019-19221

Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libarchive/libarchive/issues/1276 third party advisory issue tracking exploit
https://github.com/libarchive/libarchive/commit/22b1db9d46654afc6f0c28f90af8cdc84a199f41 third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHFV25AVTASTWZRF3KTSL357AQ6TYHM4/ vendor advisory
https://usn.ubuntu.com/4293-1/ patch vendor advisory third party advisory
https://lists.debian.org/debian-lts-announce/2022/04/msg00020.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2019-19221?
CVE-2019-19221 has been scored as a medium severity vulnerability.
How to fix CVE-2019-19221?
To fix CVE-2019-19221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-19221 being actively exploited in the wild?
It is possible that CVE-2019-19221 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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