-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: libssh security, bug fix, and enhancement update Advisory ID: RHSA-2020:4545-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:4545 Issue date: 2020-11-03 CVE Names: CVE-2019-14889 CVE-2020-1730 ==================================================================== 1. Summary: An update for libssh is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. The following packages have been upgraded to a later upstream version: libssh (0.9.4). (BZ#1804797) Security Fix(es): * libssh: denial of service when handling AES-CTR (or DES) ciphers (CVE-2020-1730) * libssh: unsanitized location in scp could lead to unwanted command execution (CVE-2019-14889) 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 Red Hat Enterprise Linux 8.3 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing these updated packages, all running applications using libssh must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1733914 - No $HOME/.config dir created if connect libvirtd with libssh 1772523 - CVE-2019-14889 libssh: unsanitized location in scp could lead to unwanted command execution 1801998 - CVE-2020-1730 libssh: denial of service when handling AES-CTR (or DES) ciphers 1804797 - Rebase libssh to the latest upstream version 1821339 - libssh based server automatically tries to load OpenSSH server configuration 1849071 - libssh ssh_channel_read() randomly returns error 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): aarch64: libssh-debuginfo-0.9.4-2.el8.aarch64.rpm libssh-debugsource-0.9.4-2.el8.aarch64.rpm libssh-devel-0.9.4-2.el8.aarch64.rpm ppc64le: libssh-debuginfo-0.9.4-2.el8.ppc64le.rpm libssh-debugsource-0.9.4-2.el8.ppc64le.rpm libssh-devel-0.9.4-2.el8.ppc64le.rpm s390x: libssh-debuginfo-0.9.4-2.el8.s390x.rpm libssh-debugsource-0.9.4-2.el8.s390x.rpm libssh-devel-0.9.4-2.el8.s390x.rpm x86_64: libssh-debuginfo-0.9.4-2.el8.i686.rpm libssh-debuginfo-0.9.4-2.el8.x86_64.rpm libssh-debugsource-0.9.4-2.el8.i686.rpm libssh-debugsource-0.9.4-2.el8.x86_64.rpm libssh-devel-0.9.4-2.el8.i686.rpm libssh-devel-0.9.4-2.el8.x86_64.rpm Red Hat Enterprise Linux BaseOS (v. 8): Source: libssh-0.9.4-2.el8.src.rpm aarch64: libssh-0.9.4-2.el8.aarch64.rpm libssh-debuginfo-0.9.4-2.el8.aarch64.rpm libssh-debugsource-0.9.4-2.el8.aarch64.rpm noarch: libssh-config-0.9.4-2.el8.noarch.rpm ppc64le: libssh-0.9.4-2.el8.ppc64le.rpm libssh-debuginfo-0.9.4-2.el8.ppc64le.rpm libssh-debugsource-0.9.4-2.el8.ppc64le.rpm s390x: libssh-0.9.4-2.el8.s390x.rpm libssh-debuginfo-0.9.4-2.el8.s390x.rpm libssh-debugsource-0.9.4-2.el8.s390x.rpm x86_64: libssh-0.9.4-2.el8.i686.rpm libssh-0.9.4-2.el8.x86_64.rpm libssh-debuginfo-0.9.4-2.el8.i686.rpm libssh-debuginfo-0.9.4-2.el8.x86_64.rpm libssh-debugsource-0.9.4-2.el8.i686.rpm libssh-debugsource-0.9.4-2.el8.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-14889 https://access.redhat.com/security/cve/CVE-2020-1730 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/ 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX6I0cNzjgjWX9erEAQgxmA/9Fvqfct/fwfF3lNrYl7kv9F1Qvsql1Kdg xiyL+PT2+CcFMK+fHgm3bdyks4SokiuxhsHVX6lwM1eNDbRsodJizwJQythxA6Sb YtYmZ8/uuV68a/mei3VaB3RGJVEh7R+fpuYnKr9UZg4M06WZwoPplVmoHCe8YGrG dO+GWObviDO6jiqTH1GOrPqSjvB0IvdSVqMfKCQ7Xx9+W5GU57M0FlRrAZqBYpMO f0XcIywDB4Kq7pZSUp9fHnVqpdHDARyBB8pQSlEuKL6edWvsu/YvOjBkRkyIHz7M laEhwN3HC2xzfPzjiErnvp6g4eYLTRR7WF9PlM2kqLx6/jbJd+9bk/4LPpXNcfAm 0a663TW8enpOKLPrSp0P6xz01xe8lkyy7mqKof4EO+3QI2AHFbiFeLyzVeZAcXzR MFyx+v6YEdlFXm//ToCohZwar4q/tIk9A2B8lxOjLYtHoEf0pQUxvXrICG4D6GSj +TLK9f0cY41rqG3zoJuYwbiiUDFPtMzexAyogCXwz/xzUfpeD9P4MtzIjUvyAqJW SCVErN0Wj75bX+oHkFQmTgCmzhS10ozxlLDsyXaevMn510r8tJSnsNW5c30pkLMW IuYWLCRi8wsQRPDIVRRXzujGkg5u1vteAgDwUZto6Hy0tlCmIpB8ajmthB3KJB7a cg4DKksI4oM=yIwO -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce