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CVE-2021-20294

Published: 29 April 2021

A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.

Notes

AuthorNote
mdeslaur
introduced in:
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=0942c7ab94e554657c3e11ab85ae7f15373ee80d

Priority

Negligible

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
binutils
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(2.36.1-6ubuntu1)
impish Not vulnerable
(2.36.1-6ubuntu1)
hirsute Not vulnerable
(2.36.1-6ubuntu1)
upstream Needs triage

bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
groovy Ignored
(end of life)
trusty Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)
Patches:
upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ddb43bab174 (master)
upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=372dd157272e0674d13372655cc60eaca9c06926 (2.35)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H