ALSA-2022:2031 - libssh security, bug fix, and enhancement update
Summary
ALSA-2022:2031: Low: libssh security, bug fix, and enhancement update. Affects libssh versions < 0.9.6-3.el8. Fixed in 0.9.6-3.el8. How to fix ↓
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Background
libssh is a library that implements the SSH protocol, allowing the development of client and server applications. It provides a secure means of communication over networks and is widely used in various software applications.
Vulnerability Detail
The libssh library has been found to have a possible heap-based buffer overflow vulnerability when rekeying, which could potentially be exploited by an attacker. This vulnerability, identified as CVE-2021-3634, could lead to arbitrary code execution or denial of service attacks. The impact of this vulnerability can vary depending on the specific implementation and usage of the library.
How To Fix
Minimum fixed version
0.9.6-3.el8
This is the first release that contains the fix.
sudo dnf update libsshTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. It is advised to apply the recommended fix by updating the libssh package to the latest version.
Conclusion
The libssh library has been updated to address a security vulnerability that could potentially lead to arbitrary code execution or denial of service attacks. It is recommended to update the libssh package to the latest version to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for libssh →
FAQ
libssh is a library that implements the SSH protocol, allowing secure communication over networks.
The vulnerability could potentially lead to arbitrary code execution or denial of service attacks.
To fix this vulnerability, update the libssh package to version 0.9.6-3.el8 or later.
There are no specific workarounds mentioned for this vulnerability.
You can find more information about this vulnerability in the CVE page(s) listed in the References section of the advisory.
References
Related vulnerabilities
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