OpenSUSE Linux update for librelp

1) Stack-based buffer overflow

EUVDB-ID: #VU11306

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2018-1000140

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.

The weakness exists in the relpTcpChkPeerName function due to insufficient validation of X.509 certificates and improper checks on the return value. A remote attacker can send a specially crafted X.509 certificate, trigger stack-based buffer overflow and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages.

Vulnerable software versions

librelp: 0.1.0 - 1.2.14

CPE2.3

• cpe:2.3:a:rainer_gerhards:librelp:0.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:rainer_gerhards:librelp:0.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:rainer_gerhards:librelp:0.1.3:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-security-announce/2018-03/msg00064.html

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?

Yes. This vulnerability is being exploited in the wild.