Buffer overflow in krb5 (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2015-8631
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 krb5 (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32307

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/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-2015-8631

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

Multiple memory leaks in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (memory consumption) via a request specifying a NULL principal name.

Mitigation

Install update from vendor's website.

Vulnerable software versions

krb5 (Alpine package): 1.12.4-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=5dfc3609c83443f92ad4f2deb320e2e4e8a711bd
https://git.alpinelinux.org/aports/commit/?id=4f2cf5fbbec2789b0e103ff0eb4104ea870841b1
https://git.alpinelinux.org/aports/commit/?id=5e3bdd5e3d1bbd6ec59d091da48d09abd09989bc
https://git.alpinelinux.org/aports/commit/?id=9fae6fa0a6bda24c7af622a7e5b5f3bed7e8207b
https://git.alpinelinux.org/aports/commit/?id=eab4343d4108ba85530b8141ae3fe0a2242cd72b


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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