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SUSE SLES11 Security Update : samba (SUSE-SU-2021:14709-1)

medium Nessus Plugin ID 150655

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES11 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2021:14709-1 advisory.

 - A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.
 (CVE-2021-20254)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1178469

https://bugzilla.suse.com/1184677

http://www.nessus.org/u?060d7e2d

https://www.suse.com/security/cve/CVE-2021-20254

Plugin Details

Severity: Medium

ID: 150655

File Name: suse_SU-2021-14709-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 6/10/2021

Updated: 1/26/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2021-20254

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:samba-krb-printing, p-cpe:/a:novell:suse_linux:libtevent0-32bit, p-cpe:/a:novell:suse_linux:libtdb1, p-cpe:/a:novell:suse_linux:libtdb1-32bit, p-cpe:/a:novell:suse_linux:samba, p-cpe:/a:novell:suse_linux:samba-doc, p-cpe:/a:novell:suse_linux:libldb1, p-cpe:/a:novell:suse_linux:libsmbclient0-32bit, p-cpe:/a:novell:suse_linux:ldapsmb, p-cpe:/a:novell:suse_linux:libtalloc2, cpe:/o:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:samba-winbind, p-cpe:/a:novell:suse_linux:samba-client-32bit, p-cpe:/a:novell:suse_linux:libtalloc2-32bit, p-cpe:/a:novell:suse_linux:samba-winbind-32bit, p-cpe:/a:novell:suse_linux:samba-client, p-cpe:/a:novell:suse_linux:libsmbclient0, p-cpe:/a:novell:suse_linux:libtevent0, p-cpe:/a:novell:suse_linux:samba-32bit, p-cpe:/a:novell:suse_linux:libwbclient0-32bit, p-cpe:/a:novell:suse_linux:libwbclient0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2021

Vulnerability Publication Date: 4/29/2021

Reference Information

CVE: CVE-2021-20254

IAVA: 2021-A-0208-S

SuSE: SUSE-SU-2021:14709-1