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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html | third party advisory mailing list |
| https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html | mailing list third party advisory patch |
| https://sourceware.org/bugzilla/show_bug.cgi?id=23787 | issue tracking exploit third party advisory |
| https://usn.ubuntu.com/4012-1/ | third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html | mailing list third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2019:2197 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html | third party advisory mailing list |