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Ubuntu Security Notice USN-5124-1

Ubuntu Security Notice USN-5124-1
Posted Oct 26, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5124-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-16592, CVE-2021-3487
SHA-256 | df287a7526a8c70c62b65f6a2e768315dbf839f82c15f2528f55fef66be08ce9

Ubuntu Security Notice USN-5124-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5124-1
October 25, 2021

binutils vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in GNU binutils.

Software Description:
- 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)

Update instructions:

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

Ubuntu 20.04 LTS:
binutils 2.34-6ubuntu1.3
binutils-multiarch 2.34-6ubuntu1.3

Ubuntu 18.04 LTS:
binutils 2.30-21ubuntu1~18.04.7
binutils-multiarch 2.30-21ubuntu1~18.04.7

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

References:
https://ubuntu.com/security/notices/USN-5124-1
CVE-2020-16592, CVE-2021-3487

Package Information:
https://launchpad.net/ubuntu/+source/binutils/2.34-6ubuntu1.3
https://launchpad.net/ubuntu/+source/binutils/2.30-21ubuntu1~18.04.7

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