#VU45096 Input validation error in tinyproxy - CVE-2011-1843


| Updated: 2020-08-11

Vulnerability identifier: #VU45096

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tinyproxy
Other software / Other software solutions

Vendor: tinyproxy

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

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.


Latest bulletins with this vulnerability


Input validation error in tinyproxy