Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16…
Priority MEDIUM 43CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.
Why it matters now
EPSS 0.05342 92nd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:* | 2.0.0 – 2.0.16 | Vulnerable | GnuPG |
| cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:* | 13 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Debian |
- cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:* Versions 2.0.0 – 2.0.16 Vulnerable ·GnuPG
- cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:* Versions 13 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Debian
Remediation
Red Hat 1 advisory
- RHSA-2010:0603 Released 2010-08-04 · Red Hat rating Moderategnupg2 security update
- Red Hat Enterprise Linux (v. 5 server) gnupg2-2.0.10-3.el5_5.1, gnupg2-2.0.10-3.el5_5.1.i386, gnupg2-2.0.10-3.el5_5.1.ia64 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) gnupg2-2.0.10-3.el5_5.1, gnupg2-2.0.10-3.el5_5.1.i386
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0603 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0603 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2547
- 2026-10-03 Alias added: GHSA-jjg3-cx5h-88wm
References
Advisory 8
Sources
- CVE-2010-2547 · CVE Program
- CVE-2010-2547 · NVD
- FIRST EPSS
- GHSA-jjg3-cx5h-88wm · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2547 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences