CVE-2026-116732
CVE-2026-116732 · libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 4.8 · Medium · EPSS 0.1%
- Published
- Updated
Stack: system
Affected products and versions
libdwarf
- Versions
- ≥ 0, ≤ 2.3.3: Affected (custom)
No fix published
dwarfutils Debian:12
- Versions
- 1:0.11.1-1
- 1:0.11.1-1~exp1
- 1:0.11.1-1~exp2
- 20210528-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dwarfutils Debian:13
- Versions
- 1:0.11.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
dwarfutils Debian:14
- Versions
- 1:0.11.1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://github.com/davea42/libdwarf-code/issues/336
- https://github.com/davea42/libdwarf-code
- https://github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee2824741b593
- https://github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debugaddr.c#L175-L216
- 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-read-via-dwarf-debug-addr-table
- https://nvd.nist.gov/vuln/detail/CVE-2026-116732