GnuTLS before 3.1.0 does not verify that the RSA PKCS #1 signature algorithm matches the…
Priority LOW 26CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
GnuTLS before 3.1.0 does not verify that the RSA PKCS #1 signature algorithm matches the signature algorithm in the certificate, which allows remote attackers to conduct downgrade attacks via unspecified vectors.
Why it matters now
EPSS 0.01397 72nd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix
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
Remediation
Red Hat 1 advisory
- RHSA-2015:1457 Released 2015-07-21 · Red Hat rating Moderategnutls security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) gnutls-2.8.5-18.el6, gnutls-utils-2.8.5-18.el6
- Red Hat Enterprise Linux Desktop Optional (v. 6) gnutls-devel-2.8.5-18.el6, gnutls-guile-2.8.5-18.el6
- Red Hat Enterprise Linux HPC Node (v. 6) gnutls-2.8.5-18.el6, gnutls-utils-2.8.5-18.el6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) gnutls-devel-2.8.5-18.el6, gnutls-guile-2.8.5-18.el6
- Red Hat Enterprise Linux Server (v. 6) gnutls-2.8.5-18.el6, gnutls-2.8.5-18.el6.ppc, gnutls-devel-2.8.5-18.el6 +2
- Red Hat Enterprise Linux Server Optional (v. 6) gnutls-guile-2.8.5-18.el6, gnutls-guile-2.8.5-18.el6.ppc
- Red Hat Enterprise Linux Workstation (v. 6) gnutls-2.8.5-18.el6, gnutls-devel-2.8.5-18.el6, gnutls-utils-2.8.5-18.el6
- Red Hat Enterprise Linux Workstation Optional (v. 6) gnutls-guile-2.8.5-18.el6
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 Virtualization 3 | Affected | No fix yet |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:1457 |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2015-0282
- 2026-10-03 Alias added: GHSA-qx46-76qj-r7r3
References
More Gnutls vulnerabilities
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
- TI-2026-03321 Gnutls: gnutls: policy bypass due to case-sensitive nameconstraints comparison CVSS 3.1HIGH 7.4
- TI-2024-00525 Gnutls: rejects certificate chain with distributed trust CVSS 3.1HIGH 7.5
- TI-2023-00345 Observable discrepancy in gnutls CVSS 3.1HIGH 7.4
- TI-2019-02841 Use after free in gnutls CVSS 3.0HIGH 7.5
- TI-2017-03378 Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2015-0282 · CVE Program
- CVE-2015-0282 · NVD
- FIRST EPSS
- GHSA-qx46-76qj-r7r3 · GitHub Advisory Database · CC BY 4.0
- CVE-2015-0282 · Red Hat security data · CC BY 4.0
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