RLSA-2026:18160

Synopsis

Moderate: libssh security update

Description

libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.

Security Fix(es):

* libssh: Buffer underflow in ssh_get_hexa() on invalid input (CVE-2026-0966)

* libssh: Improper sanitation of paths received from SCP servers (CVE-2026-0964)

* libssh: libssh: Denial of Service via improper configuration file handling (CVE-2026-0965)

* libssh: libssh: Denial of Service via inefficient regular expression processing (CVE-2026-0967)

* libssh: libssh: Denial of Service due to malformed SFTP message (CVE-2026-0968)

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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 10 Release Notes linked from the References section.

Affected products

Rocky Linux 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 riscv64 Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2433121 2436979 2436982 2436981 2436980

CVEs

CVE-2026-0964 CVE-2026-0965 CVE-2026-0966 CVE-2026-0967 CVE-2026-0968

Affected packages

Rocky Linux 10 x86_64 - BaseOS

libssh-debuginfo-0:0.12.0-2.el10.x86_64.rpm libssh-0:0.12.0-2.el10.x86_64.rpm libssh-config-0:0.12.0-2.el10.noarch.rpm libssh-0:0.12.0-2.el10.src.rpm libssh-debugsource-0:0.12.0-2.el10.x86_64.rpm

Rocky Linux 10 ppc64le - BaseOS

libssh-debugsource-0:0.12.0-2.el10.ppc64le.rpm libssh-0:0.12.0-2.el10.ppc64le.rpm libssh-config-0:0.12.0-2.el10.noarch.rpm libssh-0:0.12.0-2.el10.src.rpm libssh-debuginfo-0:0.12.0-2.el10.ppc64le.rpm

Rocky Linux 10 aarch64 - BaseOS

libssh-debugsource-0:0.12.0-2.el10.aarch64.rpm libssh-0:0.12.0-2.el10.aarch64.rpm libssh-config-0:0.12.0-2.el10.noarch.rpm libssh-debuginfo-0:0.12.0-2.el10.aarch64.rpm libssh-0:0.12.0-2.el10.src.rpm

Rocky Linux 10 s390x - BaseOS

libssh-debuginfo-0:0.12.0-2.el10.s390x.rpm libssh-config-0:0.12.0-2.el10.noarch.rpm libssh-debugsource-0:0.12.0-2.el10.s390x.rpm libssh-0:0.12.0-2.el10.s390x.rpm libssh-0:0.12.0-2.el10.src.rpm

Rocky Linux 10 x86_64 - AppStream

libssh-devel-0:0.12.0-2.el10.x86_64.rpm

Rocky Linux 10 s390x - AppStream

libssh-devel-0:0.12.0-2.el10.s390x.rpm

Rocky Linux 10 riscv64 - BaseOS

libssh-config-0:0.12.0-2.el10.noarch.rpm libssh-0:0.12.0-2.el10.src.rpm

Rocky Linux 10 ppc64le - AppStream

libssh-devel-0:0.12.0-2.el10.ppc64le.rpm

Rocky Linux 10 aarch64 - AppStream

libssh-devel-0:0.12.0-2.el10.aarch64.rpm