Out-of-bounds read in Perl

1) Out-of-bounds read

EUVDB-ID: #VU39728

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2015-8608

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The VDir::MapPathA and VDir::MapPathW functions in Perl 5.22 allow remote attackers to cause a denial of service (out-of-bounds read) and possibly execute arbitrary code via a crafted (1) drive letter or (2) pInName argument.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Perl: 5.22

CPE2.3

• cpe:2.3:a:perl:perl:5.22:*:*:*:*:*:*:*

External links

https://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://packetstormsecurity.com/files/136649/Perl-5.22-VDir-MapPathA-W-Out-Of-Bounds-Reads-Buffer-Over-Reads.html
https://rt.perl.org/Public/Bug/Display.html?id=126755
https://www.oracle.com/security-alerts/cpujul2020.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?

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