#VU88226 Memory leak in Kerberos 5 - CVE-2024-26461

Vulnerability identifier: #VU88226

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26461

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Kerberos 5
Client/Desktop applications / Software for system administration

Vendor: MIT

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in /krb5/src/lib/gssapi/krb5/k5sealv3.c. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Kerberos 5: 1.20 - 1.21.2

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External links
http://github.com/LuMingYinDetect/krb5_defects/blob/main/krb5_detect_2.md

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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