CVE-2018-18520

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.

References

https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html

https://sourceware.org/bugzilla/show_bug.cgi?id=23787

https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html

https://usn.ubuntu.com/4012-1/

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html

https://access.redhat.com/errata/RHSA-2019:2197

https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html

Details

Risk Information

CVSS v2

CVSS v3