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Gentoo Linux Security Advisory 202211-01

Gentoo Linux Security Advisory 202211-1 - Multiple vulnerabilities have been discovered in OpenSSL, the worst of which could result in remote code execution. Versions less than 3.0.7:0/3 are affected.

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Gentoo Linux Security Advisory GLSA 202211-01


                                       https://security.gentoo.org/  

Severity: Normal
Title: OpenSSL: Multiple Vulnerabilities
Date: November 01, 2022
Bugs: #878269
ID: 202211-01


Synopsis

Multiple vulnerabilities have been discovered in OpenSSL, the worst of
which could result in remote code execution.

Background

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
(SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
purpose cryptography library.

Affected packages

-------------------------------------------------------------------  
 Package              /     Vulnerable     /            Unaffected  
-------------------------------------------------------------------  

1 dev-libs/openssl < 3.0.7:0/3 >= 3.0.7:0/3

Description

Multiple buffer overflows exist in OpenSSL’s handling of TLS
certificates for client authentication.

Impact

It is believed that, while unlikely, code execution is possible in
certain system configurations.

Workaround

Users operating TLS servers may consider disabling TLS client
authentication, if it is being used, until fixes are applied.

Resolution

All OpenSSL 3 users should upgrade to the latest version:

emerge --sync

emerge --ask --oneshot --verbose “>=dev-libs/openssl-3.0.7”

References

[ 1 ] CVE-2022-3602
https://nvd.nist.gov/vuln/detail/CVE-2022-3602
[ 2 ] CVE-2022-3786
https://nvd.nist.gov/vuln/detail/CVE-2022-3786

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202211-01

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License

Copyright 2022 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

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