QID 174982

Date Published: 2021-05-06

QID 174982: SUSE Enterprise Linux Security Update for samba (SUSE-SU-2021:1498-1)

This update for samba fixes the following issues:

- CVE-2021-20277: Fixed an out of bounds read in ldb_handler_fold
(bsc#1183574).
- CVE-2021-20254: Fixed a buffer overrun in sids_to_unixids()
(bsc#1184677).
- CVE-2020-27840: Fixed an unauthenticated remote heap corruption via bad
DNs (bsc#1183572).
- Avoid free'ing our own pointer in memcache when memcache_trim attempts
to reduce cache size (bsc#1179156).
- s3-libads: use dns name to open a ldap session (bsc#1184310).
- Adjust smbcacls '--propagate-inheritance' feature to align with upstream
(bsc#1178469).

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as Critical - 8.1 severity.
  • CVSS V2 rated as Medium - 5.5 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:1498-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 174982

    CVE-2021-20254 | CVE-2021-20277 | CVE-2020-27840 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:1498-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-May/008730.html
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