Input validation error in tinyproxy



| Updated: 2020-08-11
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2011-1843
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 tinyproxy
Other software / Other software solutions

Vendor tinyproxy

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU45096

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-1843

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Integer overflow in conf.c in Tinyproxy before 1.8.3 might allow remote attackers to bypass intended access restrictions in opportunistic circumstances via a TCP connection, related to improper handling of invalid port numbers.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tinyproxy: 1.5.0 - 1.8.1

CPE2.3 External links

https://www.securityfocus.com/bid/47715
https://banu.com/bugzilla/show_bug.cgi?id=90
https://banu.com/cgit/tinyproxy/diff/?id=97b9984484299b2ce72f8f4fc3706dab8a3a8439


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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