Input validation error in squid (Alpine package)



Published: 2013-03-26
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-1839
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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squid (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU32717

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1839

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The strHdrAcptLangGetItem function in errorpage.cc in Squid 3.2.x before 3.2.9 and 3.3.x before 3.3.3 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a "," character in an Accept-Language header.

Mitigation

Install update from vendor's website.

Vulnerable software versions

squid (Alpine package): 3.2.0.17-r1 - 3.2.8-r0

External links

http://git.alpinelinux.org/aports/commit/?id=8380617123add6f54ab6b69952b3bc92533ff5f1
http://git.alpinelinux.org/aports/commit/?id=9ec78f295af134b7ab7150972e875bf5194a191a
http://git.alpinelinux.org/aports/commit/?id=b77ee5b89fafbd9b700ca9836cb534eb8d1eae9c


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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