NULL pointer dereference in gnutls
Priority LOW 39CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application.
Why it matters now
EPSS 0.0341 88th 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
Remediation
Red Hat 1 advisory
- RHSA-2017:2292 Released 2017-08-01 · Red Hat rating Moderategnutls security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) gnutls-3.3.26-9.el7, gnutls-dane-3.3.26-9.el7, gnutls-utils-3.3.26-9.el7
- Red Hat Enterprise Linux Client Optional (v. 7) gnutls-c++-3.3.26-9.el7, gnutls-devel-3.3.26-9.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) gnutls-3.3.26-9.el7, gnutls-dane-3.3.26-9.el7, gnutls-utils-3.3.26-9.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) gnutls-c++-3.3.26-9.el7, gnutls-devel-3.3.26-9.el7
- Red Hat Enterprise Linux Server (v. 7) gnutls-3.3.26-9.el7, gnutls-3.3.26-9.el7.ppc, gnutls-c++-3.3.26-9.el7 +6
- Red Hat Enterprise Linux Workstation (v. 7) gnutls-3.3.26-9.el7, gnutls-c++-3.3.26-9.el7, gnutls-dane-3.3.26-9.el7 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:2292 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Virtualization 3
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7507
- 2026-10-03 Alias added: GHSA-w59v-wh6q-qc58
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-2017-7507 · CVE Program
- CVE-2017-7507 · NVD
- FIRST EPSS
- GHSA-w59v-wh6q-qc58 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7507 · 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