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ubuntucveUbuntu.comUB:CVE-2022-2127
HistoryJul 19, 2023 - 12:00 a.m.

CVE-2022-2127

2023-07-1900:00:00
ubuntu.com
ubuntu.com
22
samba
ntlm
authentication
out-of-bounds
vulnerability
winbind

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

41.5%

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.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchsamba< anyUNKNOWN
ubuntu20.04noarchsamba< 2:4.15.13+dfsg-0ubuntu0.20.04.3UNKNOWN
ubuntu22.04noarchsamba< 2:4.15.13+dfsg-0ubuntu1.2UNKNOWN
ubuntu22.10noarchsamba< 2:4.16.8+dfsg-0ubuntu1.2UNKNOWN
ubuntu23.04noarchsamba< 2:4.17.7+dfsg-1ubuntu1.1UNKNOWN
ubuntu23.10noarchsamba< 2:4.18.5+dfsg-1ubuntu1UNKNOWN
ubuntu24.04noarchsamba< 2:4.18.5+dfsg-1ubuntu1UNKNOWN
ubuntu14.04noarchsamba< anyUNKNOWN
ubuntu16.04noarchsamba< anyUNKNOWN

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

41.5%