Out-of-bounds Read Affecting libsamba-util0-32bit package, versions <4.9.5+git.483.212a7ebca6b-3.64.1
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Test your applications- Snyk ID SNYK-SLES151-LIBSAMBAUTIL032BIT-2644761
- published 14 Apr 2022
- disclosed 1 Feb 2022
How to fix?
Upgrade SLES:15.1 libsamba-util0-32bit to version 4.9.5+git.483.212a7ebca6b-3.64.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsamba-util0-32bit package and not the libsamba-util0-32bit package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
References
- https://www.suse.com/security/cve/CVE-2021-44142.html
- https://bugzilla.suse.com/1194859
- https://bugzilla.suse.com/1195611
- https://bugzilla.suse.com/1196455
- https://bugzilla.suse.com/1199646
- https://www.samba.org/samba/security/CVE-2021-44142.html
- https://kb.cert.org/vuls/id/119678
- https://bugzilla.samba.org/show_bug.cgi?id=14914
- https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin
- https://security.gentoo.org/glsa/202309-06