GNU Debugger (GDB) 8.0 and earlier fails to detect a negative length field in a DWARF…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-770.
Summary
GNU Debugger (GDB) 8.0 and earlier fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB.
Why it matters now
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
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. 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-2017-9778
- 2026-10-03 Alias added: GHSA-hmmq-v5m7-8j9w
References
More GNU Gdb vulnerabilities
- TI-2023-20307 GNU gdb (GDB) 13.0.50.20220805-git was discovered to contain a heap buffer overflow via… CVSS 3.1MEDIUM 5.5
- TI-2023-20306 GNU gdb (GDB) 13.0.50.20220805-git was discovered to contain a heap use after free via… CVSS 3.1MEDIUM 5.5
- TI-2023-20305 GNU gdb (GDB) 13.0.50.20220805-git was discovered to contain a stack overflow via the… CVSS 3.1MEDIUM 5.5
- TI-2019-16008 Out-of-bounds read in GNU gdb CVSS 3.1HIGH 7.8
- TI-2005-01613 gdb before 6.3 searches the current working directory to load the .gdbinit configuration… CVSS 2.0HIGH 7.2
- TI-2011-03820 GNU Project Debugger (GDB) before 7.5, when .debug_gdb_scripts is defined, automatically… CVSS 2.0MEDIUM 6.9
Sources
- CVE-2017-9778 · CVE Program
- CVE-2017-9778 · NVD
- FIRST EPSS
- GHSA-hmmq-v5m7-8j9w · GitHub Advisory Database · CC BY 4.0
- CVE-2017-9778 · Red Hat security data · CC BY 4.0
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