Amazon Linux 2 Security Advisory: ALAS-2019-1263
Advisory Release Date: 2019-08-07 23:53 Pacific
Advisory Updated Date: 2019-08-09 13:32 Pacific
An out of bounds read flaw was discovered in libssh4 when a specially crafted SFTP packet is received from the server. 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-2019-3858)
An out of bounds read flaw was discovered in libssh4 in the way SSH packets with a padding length value greater than the packet length 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-2019-3861)
Affected Packages:
libssh4
Issue Correction:
Run yum update libssh4 to update your system.
aarch64:
libssh4-1.4.3-12.amzn2.2.1.aarch64
libssh4-devel-1.4.3-12.amzn2.2.1.aarch64
libssh4-debuginfo-1.4.3-12.amzn2.2.1.aarch64
i686:
libssh4-1.4.3-12.amzn2.2.1.i686
libssh4-devel-1.4.3-12.amzn2.2.1.i686
libssh4-debuginfo-1.4.3-12.amzn2.2.1.i686
noarch:
libssh4-docs-1.4.3-12.amzn2.2.1.noarch
src:
libssh4-1.4.3-12.amzn2.2.1.src
x86_64:
libssh4-1.4.3-12.amzn2.2.1.x86_64
libssh4-devel-1.4.3-12.amzn2.2.1.x86_64
libssh4-debuginfo-1.4.3-12.amzn2.2.1.x86_64