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openSUSE 2024:0558-1 Important: libssh2_org KEX Method Security Advisory

opensuse
Calendar Grey February 20, 2024
Dist Opensuse Esm H88
A patch release for libssh2_org has been issued to resolve critical vulnerabilities and improve settings for personalized key exchange algorithms.
This update for libssh2_org fixes the following issues: Always add the KEX pseudo-methods "ext-info-c" and "kex-strict- c-v00@openssh.com" when configuring custom method list

Description

This update for libssh2_org fixes the following issues:

* Always add the KEX pseudo-methods "ext-info-c" and "kex-strict-

c-v00@openssh.com" when configuring custom method list. [bsc#1218971,

CVE-2023-48795]

* The strict-kex extension is announced in the list of available KEX methods.

However, when the default KEX method list is modified or replaced, the

extension is not added back automatically.

Topics%20covered

Topics Covered

security advisory security update important important fixes openSUSE libssh2_org KEX enhancement

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap Micro 5.3

zypper in -t patch openSUSE-Leap-Micro-5.3-2024-558=1

* openSUSE Leap Micro 5.4

zypper in -t patch openSUSE-Leap-Micro-5.4-2024-558=1

* openSUSE Leap 15.5

zypper in -t patch openSUSE-SLE-15.5-2024-558=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2024-558=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2024-558=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2024-558=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2024-558=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2024-558=1

* Basesystem Module 15-SP5

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2024-558=1

* SUSE Linux Enterprise High Performance Computing 15 SP2...

Read the Full Advisory

Package List

* openSUSE Leap Micro 5.3 (aarch64 x86_64)

* libssh2-1-1.11.0-150000.4.25.1

* libssh2-1-debuginfo-1.11.0-150000.4.25.1

* libssh2_org-debugsource-1.11.0-150000.4.25.1

* openSUSE Leap Micro 5.4 (aarch64 s390x x86_64)

* libssh2-1-1.11.0-150000.4.25.1

* libssh2-1-debuginfo-1.11.0-150000.4.25.1

* libssh2_org-debugsource-1.11.0-150000.4.25.1

* openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64)

* libssh2-1-1.11.0-150000.4.25.1

* libssh2-1-debuginfo-1.11.0-150000.4.25.1

* libssh2-devel-1.11.0-150000.4.25.1

* libssh2_org-debugsource-1.11.0-150000.4.25.1

* openSUSE Leap 15.5 (x86_64)

* libssh2-1-32bit-1.11.0-150000.4.25.1

* libssh2-1-32bit-debuginfo-1.11.0-150000.4.25.1

* SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)

* libssh2-1-1.11.0-150000.4.25.1

* libssh2-1-debuginfo-1.11.0-150000.4.25.1

* libssh2_org-debugsource-1.11.0-150000.4.25.1

* SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)

* libssh2-1-1.11.0-150000.4.25.1

* libssh2-1-debuginfo-1.11.0-150000.4.25.1

*...

Read the Full Advisory

References

* bsc#1218971

## References:

* https://www.suse.com/security/cve/CVE-2023-48795.html

* https://bugzilla.suse.com/show_bug.cgi?id=1218971

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2024:0558-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update important important fixes openSUSE libssh2_org KEX enhancement

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