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.
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Ubuntu Security Notice USN-5124-1
October 25, 2021
binutils vulnerabilities
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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