CVE-2018-18520
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-18520
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-18520.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201901-3
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 0.175-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 0.175-1 |
| debian | bullseye | fixed | 0.175-1 |
| debian | forky | fixed | 0.175-1 |
| debian | sid | fixed | 0.175-1 |
| debian | trixie | fixed | 0.175-1 |
References
Verify integrity in audit chain (admin only). AS-IS.