Red Hat Enterprise Linux 8 update for libsolv

1) Improper input validation

EUVDB-ID: #VU62515

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3200

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper input validation within the Signaling (libsolv) component in Oracle Communications Cloud Native Core Policy. A local non-authenticated attacker can exploit this vulnerability to perform service disruption.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat CodeReady Linux Builder for IBM z Systems: 8.0

Red Hat CodeReady Linux Builder for ARM 64: 8.0

Red Hat CodeReady Linux Builder for Power, little endian: 8.0

Red Hat CodeReady Linux Builder for x86_64: 8.0

Red Hat Enterprise Linux for ARM 64: 8

Red Hat Enterprise Linux for Power, little endian: 8

Red Hat Enterprise Linux for IBM z Systems: 8

Red Hat Enterprise Linux for x86_64: 8.0

libsolv (Red Hat package): before 0.7.19-1.el8

External links

http://access.redhat.com/errata/RHSA-2021:4408

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.