CVE-2020-21047

MEDIUM EPSS 13.3%
Published Aug 22, 20232y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 22, 2023 2y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
13.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
elfutils_projectelfutils0.177any

References 3

  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/09/msg00026.html
  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=25068
    Issue Tracking
  • sourceware.org https://sourceware.org/git/?p=elfutils.git%3Ba=commitdiff%3Bh=99dc63b10b3878616b85df2dfd2e4e7103e414b8

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.