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Red Hat: RHSA-2022:0329-01 Critical: Samba Heap Overflow Risk

red hat
Calendar Grey January 31, 2022
Dist Redhat Esm H88
Urgent samba security patch released for Red Hat Enterprise Linux 8.1 to resolve potential code execution threat stemming from heap overflow flaw.
An update for samba is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the smb service will be restarted automatically.

Summary

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.
Security Fix(es):
* samba: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution (CVE-2021-44142)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat critical code execution samba heap overflow

References

https://access.redhat.com/security/cve/CVE-2021-44142 https://access.redhat.com/security/updates/classification/#critical

Package List

Red Hat Enterprise Linux AppStream E4S (v. 8.1):
aarch64: ctdb-debuginfo-4.10.4-103.el8_1.aarch64.rpm ctdb-tests-debuginfo-4.10.4-103.el8_1.aarch64.rpm libsmbclient-debuginfo-4.10.4-103.el8_1.aarch64.rpm libwbclient-debuginfo-4.10.4-103.el8_1.aarch64.rpm python3-samba-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-client-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-client-libs-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-common-libs-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-common-tools-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-debugsource-4.10.4-103.el8_1.aarch64.rpm samba-krb5-printing-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-libs-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-test-4.10.4-103.el8_1.aarch64.rpm samba-test-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-test-libs-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-winbind-clients-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-winbind-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-winbind-krb5-locator-debuginfo-4.10.4-103.el8_1.aarch64.rpm samba-winbind-modules-debuginfo-4.10.4-103.el8_1.aarch64.rpm
ppc64le: ctdb-debuginfo-4.10.4-103.el8_1.ppc64le.rpm ctdb-tests-debuginfo-4.10.4-103.el8_1.ppc64le.rpm libsmbclient-debuginfo-4.10.4-103.el8_1.ppc64le.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0329-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0329
Issue date: 2022-01-31

Topic

An update for samba is now available for Red Hat Enterprise Linux 8.1Update Services for SAP Solutions.Red Hat Product Security has rated this update as having a security impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat critical code execution samba heap overflow

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream E4S (v. 8.1) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS E4S (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2046146 - CVE-2021-44142 samba: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution

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