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openSUSE 15.4 openCryptoki Moderate Info Disclosure DoS Vuln 2026-2355-1

suse
Calendar Grey June 10, 2026
Dist Suse Esm H88
Address a security risk in openCryptoki on SUSE with this moderate update to prevent data leaks and DoS issues.
An update that solves one vulnerability can now be installed.

Summary

## This update for openCryptoki fixes the following issue: * CVE-2026-40253: malformed BER-encoded cryptographic objects can lead to information disclosure and denial of service (bsc#1262283). ## 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 15.4 zypper in -t patch SUSE-2026-2355=1 * SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-2355=1 * SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-2355=1 ## Package List: * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * openCryptoki-3.17.0-150400.4.16.1 * openCryptoki-debugsource-3.17.0-150400.4.16.1

Topics%20covered

Topics Covered

security advisory denial of service security update information disclosure OpenSUSE cryptographic objects

References

* bsc#1262283

Cross-

* CVE-2026-40253

CVSS scores:

* CVE-2026-40253 ( SUSE ): 7.0

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-40253 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2026-40253 ( NVD ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2026-40253 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Affected Products:

* openSUSE Leap 15.4

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Micro for Rancher 5.4

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-40253.html

* https://bugzilla.suse.com/show_bug.cgi?id=1262283

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2355-1
Release Date: 2026-06-10T15:08:36Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory denial of service security update information disclosure OpenSUSE cryptographic objects

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