RHSA-2023:3839: Moderate: libssh security update
First published: Tue Jun 27 2023(Updated: )
libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.<br>Security Fix(es):<br><li> libssh: NULL pointer dereference during rekeying with algorithm guessing (CVE-2023-1667)</li> <li> libssh: authorization bypass in pki_verify_data_signature (CVE-2023-2283)</li> 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libssh | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-config | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debuginfo | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debuginfo | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debugsource | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debugsource | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-devel | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-devel | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debuginfo | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-debugsource | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh-devel | <0.9.6-10.el8_8 | 0.9.6-10.el8_8 |
| redhat/libssh | <0.9.6-10.el8_8.aa | 0.9.6-10.el8_8.aa |
| redhat/libssh-debuginfo | <0.9.6-10.el8_8.aa | 0.9.6-10.el8_8.aa |
| redhat/libssh-debugsource | <0.9.6-10.el8_8.aa | 0.9.6-10.el8_8.aa |
| redhat/libssh-devel | <0.9.6-10.el8_8.aa | 0.9.6-10.el8_8.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2023:3839?
The severity of RHSA-2023:3839 is categorized as important due to the vulnerabilities in the libssh library.
How do I fix RHSA-2023:3839?
To fix RHSA-2023:3839, you need to update the libssh package to version 0.9.6-10.el8_8 or later.
What vulnerabilities are addressed in RHSA-2023:3839?
RHSA-2023:3839 addresses vulnerabilities including a NULL pointer dereference and an authorization bypass during rekeying.
Which systems are affected by RHSA-2023:3839?
RHSA-2023:3839 affects systems running the libssh package versions prior to 0.9.6-10.el8_8.
Is there a workaround for RHSA-2023:3839?
There are no official workarounds for RHSA-2023:3839; updating the affected packages is the recommended action.
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