SUSE update for libnbd

1) Reachable Assertion

EUVDB-ID: #VU82990

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5871

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in nbd_block_status() function. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package libnbd to the latest version.

Vulnerable software versions

openSUSE Leap: 15.3 - 15.5

python3-libnbd-debuginfo: before 1.18.1-150300.8.18.1

python3-libnbd: before 1.18.1-150300.8.18.1

libnbd-bash-completion: before 1.18.1-150300.8.18.1

nbdfuse: before 1.18.1-150300.8.18.1

libnbd-debugsource: before 1.18.1-150300.8.18.1

nbdfuse-debuginfo: before 1.18.1-150300.8.18.1

libnbd0-debuginfo: before 1.18.1-150300.8.18.1

libnbd0: before 1.18.1-150300.8.18.1

libnbd: before 1.18.1-150300.8.18.1

libnbd-debuginfo: before 1.18.1-150300.8.18.1

libnbd-devel: before 1.18.1-150300.8.18.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234463-1/

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.