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OpenAdvisories
Medium · 6.5 CVE-2020-28163 EUVD-2020-20649GHSA-7732-hqr2-cr7r

libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that ha…

Published Apr 15, 2023 · Updated Feb 6, 2025 · Assigned by mitre

Description

libdwarf before 20201201 allows a dwarf_print_lines.c NULL pointer dereference and application crash via a DWARF5 line-table header that has an invalid FORM for a pathname.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 dwarfutils 20201201-1 —
Debian 13 dwarfutils 20201201-1 —
Debian 12 dwarfutils 20201201-1 —
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS dwarfutils No fix yet —
Ubuntu 18.04 LTS dwarfutils No fix yet —
Ubuntu 16.04 LTS dwarfutils No fix yet —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 libdwarf 0.9.0-1 —
Azure Linux 2 (CBL-Mariner) libdwarf 0.9.0 —

Advisories 1

References