CVE-2021-20314
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-20314
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.2.10-7 | |
| debian | bookworm | fixed | 1.2.10-7.1 |
| debian | bullseye | fixed | 1.2.10-7.1~deb11u1 |
| debian | forky | fixed | 1.2.10-7.1 |
| debian | sid | fixed | 1.2.10-7.1 |
| debian | trixie | fixed | 1.2.10-7.1 |
References
Verify integrity in audit chain (admin only). AS-IS.