SUSE update for binutils

1) Out-of-bounds write

EUVDB-ID: #VU66491

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-20294

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in readelf. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package binutils to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-SP1-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS

SUSE Linux Enterprise Module for Development Tools: 15-SP2 - 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

binutils-gold-debuginfo: before 2.37-7.26.1

binutils-gold: before 2.37-7.26.1

binutils-devel-32bit: before 2.37-7.26.1

libctf0-debuginfo: before 2.37-7.26.1

libctf0: before 2.37-7.26.1

libctf-nobfd0-debuginfo: before 2.37-7.26.1

libctf-nobfd0: before 2.37-7.26.1

binutils-devel: before 2.37-7.26.1

binutils-debugsource: before 2.37-7.26.1

binutils-debuginfo: before 2.37-7.26.1

binutils: before 2.37-7.26.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213643-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.