CVE-2018-12020
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-12020
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12020.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201806-8
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.2.8-1 | |
| sles | affected | | |
| debian | bullseye | fixed | 2:2.0.7-1 |
| debian | bookworm | fixed | 1.4.22-5 |
| debian | forky | fixed | 1.4.22-5 |
| debian | sid | fixed | 1.4.22-5 |
| debian | trixie | fixed | 1.4.22-5 |
References
Verify integrity in audit chain (admin only). AS-IS.