National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2006-4434 Detail

Current Description

Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected."

Source:  MITRE
Description Last Modified:  08/28/2006
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (08/30/2006)

This flaw causes a crash but does not result in a denial of service against Sendmail and is therefore not a security issue.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://securitytracker.com/id?1016753 Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102664-1
http://www.attrition.org/pipermail/vim/2006-August/000999.html
http://www.debian.org/security/2006/dsa-1164
http://www.mandriva.com/security/advisories?name=MDKSA-2006:156
http://www.novell.com/linux/security/advisories/2006_21_sr.html
http://www.openbsd.org/errata.html#sendmail3
http://www.openbsd.org/errata38.html#sendmail3
http://www.securityfocus.com/bid/19714 Patch
http://www.sendmail.org/releases/8.13.8.html Patch
http://www.vupen.com/english/advisories/2006/3393 Vendor Advisory
http://www.vupen.com/english/advisories/2006/3994 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:sendmail:sendmail:4.1:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:4.55:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:5.59:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:5.61:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:5.65:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.8.8:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.9.0:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.9.1:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.9.2:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.9.3:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.10:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.10.1:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.10.2:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.0:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.1:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.2:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.3:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.4:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.5:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.6:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.11.7:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12:beta10:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12:beta12:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12:beta16:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12:beta5:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12:beta7:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.0:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.1:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.2:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.3:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.4:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.5:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.6:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.7:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.8:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.9:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.10:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.12.11:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.13.3:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.13.4:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.13.5:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.13.6:*:*:*:*:*:*:*
cpe:2.3:a:sendmail:sendmail:8.13.7:*:*:*:*:*:*:*

Denotes Vulnerable Software
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Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2006-4434
NVD Published Date:
08/28/2006
NVD Last Modified:
03/10/2011