CVE-2020-35342

Publication date 22 August 2023

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

GNU Binutils before 2.34 has an uninitialized-heap vulnerability in function tic4x_print_cond (file opcodes/tic4x-dis.c) which could allow attackers to make an information leak.

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	Not affected
	18.04 LTS bionic	Fixed 2.30-21ubuntu1~18.04.9+esm1
	16.04 LTS xenial	Fixed 2.26.1-1ubuntu1~16.04.8+esm7
	14.04 LTS trusty	Fixed 2.24-5ubuntu14.2+esm3

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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=8c5e259235a4e4546910245b170de1e29a711034 Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2c5b6e1a1c406cbe06e2d6f77861764ebd01b9ce

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-6381-1
GNU binutils vulnerabilities
18 September 2023