Red Hat Enterprise Linux 7 Extended Lifecycle Support update for krb5



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-24528
CWE-ID CWE-787
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 krb5 (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU103504

Risk: Medium

CVSSv4.0: [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-24528

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when calculating ulog block size in kadmind. A remote user can trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

krb5 (Red Hat package): before 1.15.1-55.el7_9.4

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2025:1352


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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