Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in…
Priority MEDIUM 41CWE-191Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-191 and the CVSS impact.
Summary
Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.
Why it matters now
EPSS 0.05661 93rd percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mageia:mageia:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Mageia |
| cpe:2.3:o:mageia:mageia:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Mageia |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:a:gnupg:libksba:*:*:*:*:*:*:*:* | before 1.3.2 | Vulnerable | GnuPG |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:* | 14.10 | Vulnerable | Canonical |
| cpe:2.3:a:gnupg:gnupg:2.1.0:-:*:*:*:*:*:* | 2.1.0 | Vulnerable | GnuPG |
| cpe:2.3:a:gnupg:gnupg:2.1.0:beta1:*:*:*:*:*:* | 2.1.0 beta1 | Vulnerable | GnuPG |
- cpe:2.3:o:mageia:mageia:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Mageia
- cpe:2.3:o:mageia:mageia:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Mageia
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:a:gnupg:libksba:*:*:*:*:*:*:*:* Versions before 1.3.2 Vulnerable ·GnuPG
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:* Versions 14.10 Vulnerable ·Canonical
- cpe:2.3:a:gnupg:gnupg:2.1.0:-:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·GnuPG
- cpe:2.3:a:gnupg:gnupg:2.1.0:beta1:*:*:*:*:*:* Versions 2.1.0 beta1 Vulnerable ·GnuPG
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-9087
- 2026-10-03 Alias added: GHSA-vqgr-f24j-7rxx
References
Patch 1
Sources
- CVE-2014-9087 · CVE Program
- CVE-2014-9087 · NVD
- FIRST EPSS
- GHSA-vqgr-f24j-7rxx · GitHub Advisory Database · CC BY 4.0
- CVE-2014-9087 · 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