Buffer overflow in perl (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-12883
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 perl (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32068

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-12883

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid 'N{U+...}' escape.

Mitigation

Install update from vendor's website.

Vulnerable software versions

perl (Alpine package): 5.10.1-r0 - 5.22.2-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=912943c6a0b3e2801e81ecfc708bfa61d882caeb
https://git.alpinelinux.org/aports/commit/?id=b016cc93af3bf95f617ec73a5e75228aed3235fc
https://git.alpinelinux.org/aports/commit/?id=bbc6185fa840cf1ceda1ac42aeae5bef8eb65357
https://git.alpinelinux.org/aports/commit/?id=cd0cf727fceef7bea9e79276c4511ec704e6143b
https://git.alpinelinux.org/aports/commit/?id=219509798de8a60027c708a1f8884a6885e73471
https://git.alpinelinux.org/aports/commit/?id=c088ac63d28d02d8ccd2a846809f5e00515fce81


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.



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