Amazon Linux 2 Security Advisory: ALAS-2019-1303
Advisory Release Date: 2019-09-30 22:51 Pacific
Advisory Updated Date: 2019-10-02 23:13 Pacific
Severity:
Medium
Issue Overview:
An out of bounds read flaw was discovered in libssh2 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory. (CVE-2019-3862)
Affected Packages:
libssh2
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 libssh2 to update your system.
New Packages:
aarch64:
libssh2-1.4.3-12.amzn2.2.2.aarch64
libssh2-devel-1.4.3-12.amzn2.2.2.aarch64
libssh2-debuginfo-1.4.3-12.amzn2.2.2.aarch64
i686:
libssh2-1.4.3-12.amzn2.2.2.i686
libssh2-devel-1.4.3-12.amzn2.2.2.i686
libssh2-debuginfo-1.4.3-12.amzn2.2.2.i686
noarch:
libssh2-docs-1.4.3-12.amzn2.2.2.noarch
src:
libssh2-1.4.3-12.amzn2.2.2.src
x86_64:
libssh2-1.4.3-12.amzn2.2.2.x86_64
libssh2-devel-1.4.3-12.amzn2.2.2.x86_64
libssh2-debuginfo-1.4.3-12.amzn2.2.2.x86_64