CVE-2021-20271
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-20271
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:2574
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-20271.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 4.16.1.2+dfsg1-1 |
| debian | bullseye | fixed | 4.16.1.2+dfsg1-1 |
| debian | forky | fixed | 4.16.1.2+dfsg1-1 |
| debian | sid | fixed | 4.16.1.2+dfsg1-1 |
| debian | trixie | fixed | 4.16.1.2+dfsg1-1 |
References
Verify integrity in audit chain (admin only). AS-IS.