[USN-5124-1] GNU binutils vulnerabilities
Marc Deslauriers
marc.deslauriers at canonical.com
Mon Oct 25 16:41:43 UTC 2021
==========================================================================
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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