Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 620
Alerts This Week
Warning Icon 1 620

Red Hat Enterprise Linux 8 RHSA-2020-4545-01 Moderate: libssh Issues

red hat
Calendar Grey November 3, 2020
Dist Redhat Esm H88
Red Hat has issued a moderate advisory concerning libssh to tackle security vulnerabilities and provide necessary patches for RHEL 8 users. Discover the details regarding the updates.
An update for libssh is now available for Red Hat Enterprise Linux 8

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate denial of service red hat command execution bug fix libssh

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/

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

Read the Full Advisory


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

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service red hat command execution bug fix libssh

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

Bugs Fixed

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) ciphers1804797 - 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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.