#VU11835 Heap-based buffer overflow in Perl


Published: 2018-04-16

Vulnerability identifier: #VU11835

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-6913

CWE-ID: CWE-122

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Perl
Universal components / Libraries / Scripting languages

Vendor: Perl

Description
The vulnerability allows a local attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists due to heap-based buffer overflow. A local attacker can exploit a specially crafted pack() function, trigger memory corruption and cause the service to crash or run Perl code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 5.26.2.

Vulnerable software versions

Perl: 5.26.0 - 5.26.1


External links
http://rt.perl.org/Public/Bug/Display.html?id=131844


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.


Latest bulletins with this vulnerability