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CVE-2022-32746

Publication date 27 July 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.4 · Medium

Score breakdown

A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.

Read the notes from the security team

Mitigation

Disabling AD DC database audit logging prevents the use-after-free from occurring, as that is the only component that will access the original message.

Status

Package Ubuntu Release Status
ldb 24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy
Fixed 2:2.4.4-0ubuntu0.1
21.10 impish Ignored end of life
20.04 LTS focal
Fixed 2:2.2.3-0ubuntu0.20.04.3
18.04 LTS bionic Ignored
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation
samba 24.10 oracular
Fixed 2:4.16.4+dfsg-2ubuntu1
24.04 LTS noble
Fixed 2:4.16.4+dfsg-2ubuntu1
23.10 mantic
Fixed 2:4.16.4+dfsg-2ubuntu1
23.04 lunar
Fixed 2:4.16.4+dfsg-2ubuntu1
22.10 kinetic
Fixed 2:4.16.4+dfsg-2ubuntu1
22.04 LTS jammy
Fixed 2:4.15.9+dfsg-0ubuntu0.2
21.10 impish Ignored end of life
20.04 LTS focal
Fixed 2:4.13.17~dfsg-0ubuntu1.20.04.1
18.04 LTS bionic Ignored
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Notes

mdeslaur

combined patches are in bug 15096 Fixing this in Ubuntu 18.04 LTS would require substantial code backports. We will not be fixing this issue in Ubuntu 18.04 LTS. In environments where this is of concern, we recommend updating to a more recent Ubuntu version, or disabling AD DC database audit logging if this is not passible.

Severity score breakdown

Parameter Value
Base score 5.4 · Medium
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

Related Ubuntu Security Notices (USN)

Other references