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Red Hat Security Advisory 2021-2786-01

Red Hat Security Advisory 2021-2786-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2786-01 - The libldb packages provide an extensible library that implements an LDAP-like API to access remote LDAP servers, or use local TDB databases. Issues addressed include an out of bounds read vulnerability.

tags | advisory, remote, local
systems | linux, redhat
advisories | CVE-2021-20277
SHA-256 | f268e25fce643231cb735cf3786ad5ec170dd2a9e4254f178dc95bdc8351d210

Red Hat Security Advisory 2021-2786-01

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====================================================================
Red Hat Security Advisory

Synopsis: Important: libldb security update
Advisory ID: RHSA-2021:2786-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2786
Issue date: 2021-07-20
CVE Names: CVE-2021-20277
====================================================================
1. Summary:

An update for libldb is now available for Red Hat Enterprise Linux 7.6
Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.6 Update Services for SAP
Solutions.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server E4S (v. 7.6) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.6) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.6) - x86_64

3. Description:

The libldb packages provide an extensible library that implements an
LDAP-like API to access remote LDAP servers, or use local TDB databases.

Security Fix(es):

* samba: Out of bounds read in AD DC LDAP server (CVE-2021-20277)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1941402 - CVE-2021-20277 samba: Out of bounds read in AD DC LDAP server

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.6):

Source:
libldb-1.3.4-2.el7_6.src.rpm

x86_64:
libldb-1.3.4-2.el7_6.i686.rpm
libldb-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
pyldb-1.3.4-2.el7_6.i686.rpm
pyldb-1.3.4-2.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.6):

Source:
libldb-1.3.4-2.el7_6.src.rpm

ppc64le:
libldb-1.3.4-2.el7_6.ppc64le.rpm
libldb-debuginfo-1.3.4-2.el7_6.ppc64le.rpm

x86_64:
libldb-1.3.4-2.el7_6.i686.rpm
libldb-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
pyldb-1.3.4-2.el7_6.i686.rpm
pyldb-1.3.4-2.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.6):

Source:
libldb-1.3.4-2.el7_6.src.rpm

x86_64:
libldb-1.3.4-2.el7_6.i686.rpm
libldb-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
pyldb-1.3.4-2.el7_6.i686.rpm
pyldb-1.3.4-2.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.6):

x86_64:
ldb-tools-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
libldb-devel-1.3.4-2.el7_6.i686.rpm
libldb-devel-1.3.4-2.el7_6.x86_64.rpm
pyldb-devel-1.3.4-2.el7_6.i686.rpm
pyldb-devel-1.3.4-2.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.6):

ppc64le:
ldb-tools-1.3.4-2.el7_6.ppc64le.rpm
libldb-debuginfo-1.3.4-2.el7_6.ppc64le.rpm
libldb-devel-1.3.4-2.el7_6.ppc64le.rpm
pyldb-1.3.4-2.el7_6.ppc64le.rpm
pyldb-devel-1.3.4-2.el7_6.ppc64le.rpm

x86_64:
ldb-tools-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
libldb-devel-1.3.4-2.el7_6.i686.rpm
libldb-devel-1.3.4-2.el7_6.x86_64.rpm
pyldb-devel-1.3.4-2.el7_6.i686.rpm
pyldb-devel-1.3.4-2.el7_6.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.6):

x86_64:
ldb-tools-1.3.4-2.el7_6.x86_64.rpm
libldb-debuginfo-1.3.4-2.el7_6.i686.rpm
libldb-debuginfo-1.3.4-2.el7_6.x86_64.rpm
libldb-devel-1.3.4-2.el7_6.i686.rpm
libldb-devel-1.3.4-2.el7_6.x86_64.rpm
pyldb-devel-1.3.4-2.el7_6.i686.rpm
pyldb-devel-1.3.4-2.el7_6.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-20277
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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