CVE-2020-21047

Description

The libcpu component which is used by libasm of elfutils version 0.177 (git 47780c9e), suffers from denial-of-service vulnerability caused by application crashes due to out-of-bounds write (CWE-787), off-by-one error (CWE-193) and reachable assertion (CWE-617); to exploit the vulnerability, the attackers need to craft certain ELF files which bypass the missing bound checks.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.00%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sourceware.org/bugzilla/show_bug.cgi?id=25068 issue tracking
https://sourceware.org/git/?p=elfutils.git%3Ba=commitdiff%3Bh=99dc63b10b3878616b85df2dfd2e4e7103e414b8
https://lists.debian.org/debian-lts-announce/2023/09/msg00026.html mailing list

Frequently Asked Questions

What is the severity of CVE-2020-21047?
CVE-2020-21047 has been scored as a medium severity vulnerability.
How to fix CVE-2020-21047?
To fix CVE-2020-21047, 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-2020-21047 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-21047 is being actively exploited. 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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