🛡️ MGASA-2026-0233 — krb5

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Updated krb5 packages fix security vulnerabilities

CVE-2025-3576, A vulnerability in the MIT Kerberos implementation allows

GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to

weaknesses in the MD5 checksum design. If RC4 is preferred over stronger

encryption types, an attacker could exploit MD5 collisions to forge

message integrity codes. This may lead to unauthorized message

tampering.

CVE-2026-40355, there is a NULL pointer dereference if an application

calls gss_accept_sec_context() on a system with a NegoEx mechanism

registered in /etc/gss/mech. An unauthenticated remote attacker can

trigger this, causing the process to terminate in parse_nego_message.

CVE-2026-40356, there is an integer underflow and resultant

out-of-bounds read if an application calls gss_accept_sec_context() on a

system with a NegoEx mechanism registered in /etc/gss/mech. An

unauthenticated remote attacker can trigger this, possibly causing the

process to terminate in parse_message.

Affected software

MGASA-2026-0233 is recorded against 1 package.

  • krb5 (fixed in 1.20.1-1.5.mga9)

Timeline and source

Published on 27 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

advisories.mageia.org (Advisory)
bugs.mageia.org (Report)
ubuntu.com (Advisory)
lists.fedoraproject.org (Web)
www.openwall.com (Web)
cems.fun (Web)
lists.opensuse.org (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-27
Updated 2026-08-12
Modified 2026-06-27
Fix URL N/A

Affected Packages

Software From version Fixed in
krb5 — 1.20.1-1.5.mga9

Similar Threats

Free Vulnerability Check

Is your site affected by MGASA-2026-0233?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against MGASA-2026-0233 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.