[USN-4888-2] ldb vulnerabilities
Avital Ostromich
avital.ostromich at canonical.com
Thu Mar 25 17:55:18 UTC 2021
==========================================================================
Ubuntu Security Notice USN-4888-2
March 25, 2021
ldb vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in ldb.
Software Description:
- ldb: LDAP-like embedded database
Details:
USN-4888-1 fixed several vulnerabilities in ldb. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Douglas Bagnall discovered that ldb, when used with Samba, incorrectly
handled certain LDAP attributes. A remote attacker could possibly use this
issue to cause the LDAP server to crash, resulting in a denial of service.
(CVE-2021-20277)
Douglas Bagnall discovered that ldb, when used with Samba, incorrectly
handled certain DN strings. A remote attacker could use this issue to
cause the LDAP server to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2020-27840)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
libldb1 1:1.1.24-0ubuntu0.14.04.2+esm1
After a standard system update you need to restart applications using ldb,
such as Samba, to make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-4888-2
https://ubuntu.com/security/notices/USN-4888-1
CVE-2020-27840, CVE-2021-20277
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 495 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20210325/6f25f255/attachment.sig>
More information about the ubuntu-security-announce
mailing list