---
title: "CVE-2020-35342\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2020-35342?format=md
keywords: index, follow
---

# CVE-2020-35342

Publication date 22 August 2023

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2020-35342?format=md#impact-score)

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## 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](https://ubuntu.com/security/CVE-2020-35342?format=md#notes)

## 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  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 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2020-35342?format=md#patch-details)

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## Notes

---

### [seth-arnold](https://launchpad.net/~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?](https://ubuntu.com/security/cves/about#security)

| 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

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35342)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-35342)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-35342)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-35342)

### Related Ubuntu Security Notices (USN)

+ [USN-6381-1](https://usn.ubuntu.com/USN-6381-1)
+ GNU binutils vulnerabilities
+ 18 September 2023

### Other references

* <https://sourceware.org/bugzilla/show_bug.cgi?id=25319>
* <https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8c5e259235a4e4546910245b170de1e29a711034>
* <https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2c5b6e1a1c406cbe06e2d6f77861764ebd01b9ce>
* <https://www.cve.org/CVERecord?id=CVE-2020-35342>