The dwarf_dealloc function in libdwarf before 20160923 allows remote attackers to cause a…
Priority MEDIUM 40CWE-125Published · 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
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
The dwarf_dealloc function in libdwarf before 20160923 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted DWARF section.
Why it matters now
EPSS 0.0426 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:* | 1999-12-14 to before 2016-09-23 | Vulnerable | Libdwarf Project |
- cpe:2.3:a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:* Versions 1999-12-14 to before 2016-09-23 Vulnerable ·Libdwarf Project
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 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5043
- 2026-10-03 Alias added: GHSA-f6fp-4hh9-m34r
References
More Libdwarf Project Libdwarf vulnerabilities
- TI-2016-07781 (1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124… CVSS 3.1CRITICAL 9.8
- TI-2017-06517 An issue, also known as DW201703-006, was discovered in libdwarf 2017-03-21. CVSS 3.1CRITICAL 9.8
- TI-2017-06520 An issue, also known as DW201703-001, was discovered in libdwarf 2017-03-21. CVSS 3.1CRITICAL 9.8
- TI-2017-06519 An issue, also known as DW201703-002, was discovered in libdwarf 2017-03-21. CVSS 3.1CRITICAL 9.8
- TI-2016-07746 libdwarf 2016-10-21 allows context-dependent attackers to obtain sensitive information or… CVSS 3.0CRITICAL 9.1
- TI-2017-06518 An issue, also known as DW201703-005, was discovered in libdwarf 2017-03-21. CVSS 3.1CRITICAL 9.1
Sources
- CVE-2016-5043 · CVE Program
- CVE-2016-5043 · NVD
- FIRST EPSS
- GHSA-f6fp-4hh9-m34r · GitHub Advisory Database · CC BY 4.0
- CVE-2016-5043 · Red Hat security data · CC BY 4.0
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