Vulnerability Description
libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read past the heap buffer, disclosing adjacent heap bytes or crashing consumers.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/davea42/libdwarf-code
- https://github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debu
- https://github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee282
- https://github.com/davea42/libdwarf-code/issues/336
- https://hackmd.io/@haindpwn/libdwarf-debug-addr-table-section-offset-oob-read
- https://www.vulncheck.com/advisories/libdwarf-through-2.3.3-heap-out-of-bounds-r
FAQ
What is CVE-2026-116732?
CVE-2026-116732 is a vulnerability with a CVSS score of 4.4 (MEDIUM). libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a...
How severe is CVE-2026-116732?
CVE-2026-116732 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116732?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.