Security Bulletin
This security bulletin contains one medium risk vulnerability.
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
DescriptionThe 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.
MitigationUpdate the affected package binutils to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8 - 9
SUSE Linux Enterprise Software Development Kit: 12-SP5
SUSE Linux Enterprise Server for SAP: 12-SP3 - 12-SP4
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5
SUSE OpenStack Cloud: 8 - 9
cross-spu-binutils-debugsource: before 2.37-9.44.1
cross-spu-binutils-debuginfo: before 2.37-9.44.1
cross-spu-binutils: before 2.37-9.44.1
cross-ppc-binutils-debugsource: before 2.37-9.44.1
cross-ppc-binutils-debuginfo: before 2.37-9.44.1
cross-ppc-binutils: before 2.37-9.44.1
binutils-gold-debuginfo: before 2.37-9.44.1
binutils-gold: before 2.37-9.44.1
libctf0-debuginfo: before 2.37-9.44.1
libctf0: before 2.37-9.44.1
libctf-nobfd0-debuginfo: before 2.37-9.44.1
libctf-nobfd0: before 2.37-9.44.1
binutils-devel: before 2.37-9.44.1
binutils-debugsource: before 2.37-9.44.1
binutils-debuginfo: before 2.37-9.44.1
binutils: before 2.37-9.44.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213637-1/
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.