Related Vulnerabilities: CVE-2018-18520  

An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file.

Severity Medium

Remote Yes

Type Denial of service

Description

An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file.

AVG-785 elfutils 0.174-1 0.175-1 Medium Fixed

08 Jan 2019 ASA-201901-3 AVG-785 elfutils Medium denial of service

https://sourceware.org/bugzilla/show_bug.cgi?id=23787
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html