Detections
Analytics
Privoxy < 3.0.23 Multiple DoS Vulnerabilities
medium Nessus Plugin ID 81516
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Synopsis
The remote web proxy is affected by multiple denial of service vulnerabilities.Description
According to its self-reported version number, the version of Privoxy running on the remote host is prior to 3.0.23. It is, therefore, potentially affected by multiple denial of service vulnerabilities :- A flaw exists in the chunked_body_is_complete() function in 'jcc.c' due to improper processing of invalid chunk-encoded bodies. A remote attacker, using a specially crafted client request, can cause the Privoxy instance to abort. (CVE-2015-1380)
- Multiple flaws exist in the pcrs_compile_replacement() function in 'pcrs.c' when handling backreferences.
Remote attackers can exploit these flaws to cause a segmentation fault or memory consumption.
(CVE-2015-1381)
- An invalid read flaw in 'parsers.c' allows a remote attacker, via an HTTP request with a specially-crafted time header, to cause a denial of service condition.
(CVE-2015-1382)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Privoxy version 3.0.23 or later.See Also
https://sourceforge.net/p/ijbswa/mailman/message/33089172/
http://www.nessus.org/u?02038803
Plugin Details
Severity: Medium
ID: 81516
File Name: privoxy_3_0_23.nasl
Version: 1.4
Type: remote
Family: Firewalls
Published: 2/25/2015
Updated: 11/15/2018
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Vulnerability Information
CPE: cpe:/a:privoxy:privoxy
Required KB Items: www/Privoxy, Settings/ParanoidReport
Exploit Ease: No known exploits are available
Patch Publication Date: 1/26/2015
Vulnerability Publication Date: 1/26/2015