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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00251.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

cpe:2.3:a:elfutils_project:elfutils:0.177:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3579-1 elfutils security update
EUVD EUVD EUVD-2020-13826 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.
Ubuntu USN Ubuntu USN USN-6322-1 elfutils vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-202008.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-398330.html cve-icon
https://lists.debian.org/debian-lts-announce/2023/09/msg00026.html cve-icon cve-icon
https://sourceware.org/bugzilla/show_bug.cgi?id=25068 cve-icon cve-icon
https://sourceware.org/git/?p=elfutils.git%3Ba=commitdiff%3Bh=99dc63b10b3878616b85df2dfd2e4e7103e414b8 cve-icon cve-icon
History

Wed, 14 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
References

Mon, 07 Oct 2024 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-14T09:35:15.997Z

Reserved: 2020-08-13T00:00:00.000Z

Link: CVE-2020-21047

cve-icon Vulnrichment

Updated: 2024-08-04T14:22:25.620Z

cve-icon NVD

Status : Modified

Published: 2023-08-22T19:16:09.657

Modified: 2026-10-14T10:17:31.970

Link: CVE-2020-21047

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses