CVE-2018-18521

Public Exploit

Description

Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

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/msg00055.html mailing list third party advisory patch
https://sourceware.org/bugzilla/show_bug.cgi?id=23786 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

Frequently Asked Questions

What is the severity of CVE-2018-18521?
CVE-2018-18521 has been scored as a medium severity vulnerability.
How to fix CVE-2018-18521?
To fix CVE-2018-18521, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-18521 being actively exploited in the wild?
It is possible that CVE-2018-18521 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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