CVE-2020-21047
elfutils - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2020-21047
To remediate CVE-2020-21047, upgrade the affected package to a fixed version below.
- —upgrade to 0.180-1 or later
- —upgrade to 0.176-1.1+deb10u1 or later
Is CVE-2020-21047 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.180-1
- from 0, < 0.176-1.1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |