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SUSE Linux: 2024:0558-1 Important: libssh2_org Buffer Overflow Fix

suse
Calendar Grey February 20, 2024
Dist Suse Esm H88
Essential updates for libssh2_org have been prepared, including patch guidelines tailored for various SUSE distributions. A critical security enhancement is now accessible.
* bsc#1218971 Cross-References: * CVE-2023-48795

Summary

## 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. ## 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

References

* bsc#1218971

Cross-

* CVE-2023-48795

CVSS scores:

* CVE-2023-48795 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

* CVE-2023-48795 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Products:

* Basesystem Module 15-SP5

* openSUSE Leap 15.5

* openSUSE Leap Micro 5.3

* openSUSE Leap Micro 5.4

* SUSE Enterprise Storage 7.1

* SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4

* SUSE Linux Enterprise Desktop 15 SP5

* SUSE Linux Enterprise High Performance Computing 15 SP2

* SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2

* SUSE Linux Enterprise High Performance Computing 15 SP3

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

Severity
important
Lowest
Low
Medium
High
Critical

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

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