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openSUSE Leap 16.0 krb5 Important Heap Out-of-Bounds Attack 2026-21238-1

opensuse
Calendar Grey July 8, 2026
Dist Opensuse Esm H88
Install the important openSUSE update addressing a heap attack issue in krb5. Secure your system now!
An update that solves one vulnerability and has one bug fix can now be installed.

Description

This update for krb5 fixes the following issue

- CVE-2026-11850: integer underflow in berval2tl_data() leads to heap out-of-bounds read (bsc#1268131).

Patch instructions:

To install this openSUSE security 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 16.0

zypper in -t patch openSUSE-Leap-16.0-1159=1

Topics%20covered

Topics Covered

security advisory bug fix important krb5 OpenSUSE heap attack

Patch

Package List

- openSUSE Leap 16.0:

krb5-1.21.3-160000.4.1

krb5-client-1.21.3-160000.4.1

krb5-devel-1.21.3-160000.4.1

krb5-plugin-kdb-ldap-1.21.3-160000.4.1

krb5-plugin-preauth-otp-1.21.3-160000.4.1

krb5-plugin-preauth-pkinit-1.21.3-160000.4.1

krb5-plugin-preauth-spake-1.21.3-160000.4.1

krb5-server-1.21.3-160000.4.1

References

* bsc#1268131

References:

* https://www.suse.com/security/cve/CVE-2026-11850.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21238-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory bug fix important krb5 OpenSUSE heap attack

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