1. Ubuntu Security Notices
  2. USN-5124-1

USN-5124-1: GNU binutils vulnerabilities

Publication date

25 October 2021

Overview

Several security issues were fixed in GNU binutils.

Releases

Packages

  • binutils - GNU assembler, linker and binary utilities

Details

It was discovered that GNU binutils incorrectly handled certain hash
lookups. An attacker could use this issue to cause GNU binutils to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-16592)

It was discovered that GNU binutils incorrectly handled certain corrupt
DWARF debug sections. An attacker could possibly use this issue to cause
GNU binutils to consume memory, resulting in a denial of service.
(CVE-2021-3487)

It was discovered that GNU binutils incorrectly handled certain hash
lookups. An attacker could use this issue to cause GNU binutils to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-16592)

It was discovered that GNU binutils incorrectly handled certain corrupt
DWARF debug sections. An attacker could possibly use this issue to cause
GNU binutils to consume memory, resulting in a denial of service.
(CVE-2021-3487)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal binutils-multiarch –  2.34-6ubuntu1.3
binutils –  2.34-6ubuntu1.3
18.04 bionic binutils-multiarch –  2.30-21ubuntu1~18.04.7
binutils –  2.30-21ubuntu1~18.04.7

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References

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