Arch Linux update for krb5

Published: 2018-06-06

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-5729 CVE-2018-5730
CWE-ID	CWE-476 CWE-264
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Arch Linux Operating systems & Components / Operating system
Vendor	Arch Linux

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU11080

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5729

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to NULL pointer dereference. A local attacker can add crafted principals to the Lightweight Directory Access Protocol (LDAP) database and cause the service to crash.

Mitigation

Update the affected package krb5 to version 1.16.1-1.

Vulnerable software versions

Arch Linux: All versions

External links

http://security.archlinux.org/advisory/ASA-201806-3

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Security restrictions bypass

EUVDB-ID: #VU11076