CVE-2020-21047

2023-08-2219:16:09

CWE-787

[email protected]

web.nvd.nist.gov

cve-2020-21047

out-of-bounds write

off-by-one error

reachable assertion

application crashes

missing bound checks

crafted elf files

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.3%

JSON

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.