CVE-2009-4413

Exp

The httpClientDiscardBody function in client.c in Polipo 0.9.8, 0.9.12, 1.0.4, and possibly other versions, allows remote attackers to cause a denial of service (crash) via a request with a large Content-Length value, which triggers an integer overflow, a signed-to-unsigned conversion error with a negative value, and a segmentation fault.

Published: 2009-12-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4413 is rated High Exploit Risk (64.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.66%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-4413

EDB-ID Source Kind Published Link
10338 exploit_db edb 2009-12-07 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4413

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 12.41% 8.66% -3.75%
2 2025-03-30 18.98% 12.41% -6.57%
3 2025-03-29 — 18.98% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4413

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-4413

OS Trackers for CVE-2009-4413

vendor priority summary link
ubuntu medium CVE-2009-4413 medium priority: Ubuntu including 1 source packages (polipo), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): released 4, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2009-4413

Affected software / configurations for CVE-2009-4413

Vendor Product Version Raw CPE
pps.jussieu polipo 0.9.8 cpe:2.3:a:pps.jussieu:polipo:0.9.8:*:*:*:*:*:*:*
pps.jussieu polipo 0.9.12 cpe:2.3:a:pps.jussieu:polipo:0.9.12:*:*:*:*:*:*:*
pps.jussieu polipo 1.0.4 cpe:2.3:a:pps.jussieu:polipo:1.0.4:*:*:*:*:*:*:*

References for CVE-2009-4413

cvelogic Threat Intelligence