Amazon Linux 2 Security Advisory: ALAS-2021-1628
Advisory Release Date: 2021-04-20 17:55 Pacific
Advisory Updated Date: 2021-04-21 17:58 Pacific
Severity:
Important
Issue Overview:
A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability. (CVE-2021-20277)
Affected Packages:
libldb
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libldb to update your system.
New Packages:
aarch64:
libldb-1.5.4-2.amzn2.aarch64
ldb-tools-1.5.4-2.amzn2.aarch64
libldb-devel-1.5.4-2.amzn2.aarch64
pyldb-1.5.4-2.amzn2.aarch64
pyldb-devel-1.5.4-2.amzn2.aarch64
libldb-debuginfo-1.5.4-2.amzn2.aarch64
i686:
libldb-1.5.4-2.amzn2.i686
ldb-tools-1.5.4-2.amzn2.i686
libldb-devel-1.5.4-2.amzn2.i686
pyldb-1.5.4-2.amzn2.i686
pyldb-devel-1.5.4-2.amzn2.i686
libldb-debuginfo-1.5.4-2.amzn2.i686
src:
libldb-1.5.4-2.amzn2.src
x86_64:
libldb-1.5.4-2.amzn2.x86_64
ldb-tools-1.5.4-2.amzn2.x86_64
libldb-devel-1.5.4-2.amzn2.x86_64
pyldb-1.5.4-2.amzn2.x86_64
pyldb-devel-1.5.4-2.amzn2.x86_64
libldb-debuginfo-1.5.4-2.amzn2.x86_64