CVE-2006-4434
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.54% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.2% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2006-08-29 00:00Z20 YR AGO
- Last updated
- 2024-08-07 19:06Z2 YR AGO
- Reserved
- 2006-08-28
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- bd7c93b1c2cb7b42af4986440189187f284a8bac34faa8f8397bba776956d21e
05 Affected products
06 References
- www.openbsd.org[3.9] 20060825 005: SECURITY FIX: August 25, 2006http://www.openbsd.org/errata.html#sendmail3
- www.attrition.org20060829 Sendmail vendor dispute - CVE-2006-4434 (fwd)http://www.attrition.org/pipermail/vim/2006-August/000999.html
- securitytracker.com1016753http://securitytracker.com/id?1016753
- secunia.com21637http://secunia.com/advisories/21637
- www.vupen.comADV-2006-3994http://www.vupen.com/english/advisories/2006/3994
- www.osvdb.org28193http://www.osvdb.org/28193
- secunia.com21749http://secunia.com/advisories/21749
- secunia.com21700http://secunia.com/advisories/21700
- www.debian.orgDSA-1164http://www.debian.org/security/2006/dsa-1164
- secunia.com21641http://secunia.com/advisories/21641
- www.sendmail.orghttp://www.sendmail.org/releases/8.13.8.html
- www.vupen.comADV-2006-3393http://www.vupen.com/english/advisories/2006/3393
- www.mandriva.comMDKSA-2006:156http://www.mandriva.com/security/advisories?name=MDKSA-2006:156
- www.securityfocus.com19714http://www.securityfocus.com/bid/19714
- www.novell.comSUSE-SR:2006:021http://www.novell.com/linux/security/advisories/2006_21_sr.html
- sunsolve.sun.com102664http://sunsolve.sun.com/search/document.do?assetkey=1-26-102664-1
- secunia.com22369http://secunia.com/advisories/22369
- www.openbsd.org[3.8] 20060825 010: SECURITY FIX: August 25, 2006http://www.openbsd.org/errata38.html#sendmail3
- secunia.com21696http://secunia.com/advisories/21696
07 Fixed in
Debian 12
- sendmail Fixed in 8.13.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- sendmail Fixed in 8.13.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- sendmail Fixed in 8.13.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.