CVE-2020-19726

Publication date 22 August 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory or cause a denial of service.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
binutils	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Fixed 2.34-6ubuntu1.7
	18.04 LTS bionic	Fixed 2.30-21ubuntu1~18.04.9+esm1 Ubuntu Pro
	16.04 LTS xenial	Fixed 2.26.1-1ubuntu1~16.04.8+esm7 Ubuntu Pro
	14.04 LTS trusty	Fixed 2.24-5ubuntu14.2+esm3 Ubuntu Pro

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Notes

seth-arnold

binutils isn't safe for untrusted inputs.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
binutils	Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=4fd8d5856435ff84de1f181381fc51754285af6f

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H