CVE-2022-2127

Publication date 19 July 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.

Status

Package Ubuntu Release Status
samba 25.04 plucky
Fixed 2:4.18.5+dfsg-1ubuntu1
24.10 oracular
Fixed 2:4.18.5+dfsg-1ubuntu1
24.04 LTS noble
Fixed 2:4.18.5+dfsg-1ubuntu1
23.10 mantic
Fixed 2:4.18.5+dfsg-1ubuntu1
23.04 lunar
Fixed 2:4.17.7+dfsg-1ubuntu1.1
22.10 kinetic
Fixed 2:4.16.8+dfsg-0ubuntu1.2
22.04 LTS jammy
Fixed 2:4.15.13+dfsg-0ubuntu1.2
20.04 LTS focal
Fixed 2:4.15.13+dfsg-0ubuntu0.20.04.3
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references