CVE-2021-36976
libarchive - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.19%
Description
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
How to fix CVE-2021-36976
To remediate CVE-2021-36976, upgrade the affected package to a fixed version below.
- Alpine/libarchive—upgrade to 3.5.3-r0 or later
- Debian/libarchive—upgrade to 3.4.3-2+deb11u2 or later
- —upgrade to 3.4.3-2+deb11u2 or later
Is CVE-2021-36976 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 3.5.3-r0
- from 0, < 3.4.3-2+deb11u2
- from 0, < 3.4.3-2+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |