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CVE-2020-25717

Publication date 9 November 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

Read the notes from the security team

Status

Package Ubuntu Release Status
samba 24.10 oracular
Fixed 2:4.13.14+dfsg-0ubuntu1
24.04 LTS noble
Fixed 2:4.13.14+dfsg-0ubuntu1
23.10 mantic
Fixed 2:4.13.14+dfsg-0ubuntu1
23.04 lunar
Fixed 2:4.13.14+dfsg-0ubuntu1
22.10 kinetic
Fixed 2:4.13.14+dfsg-0ubuntu1
22.04 LTS jammy
Fixed 2:4.13.14+dfsg-0ubuntu1
21.10 impish
Fixed 2:4.13.14+dfsg-0ubuntu0.21.10.1
21.04 hirsute
Fixed 2:4.13.14+dfsg-0ubuntu0.21.04.1
20.04 LTS focal
Fixed 2:4.13.14+dfsg-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.26
16.04 LTS xenial
Vulnerable
14.04 LTS trusty
Vulnerable

Notes

mdeslaur

The fix for this issue introduces behaviour changes

Severity score breakdown

Parameter Value
Base score 8.1 · High
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-5142-1
    • Samba vulnerabilities
    • 11 November 2021
    • USN-5174-1
    • Samba vulnerabilities
    • 6 December 2021

Other references