Memory leak in Postfix - CVE-2008-3889
Published: June 8, 2025
Vulnerability identifier: #VU110629
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2008-3889
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due application leaks epoll file descriptors during execution of non-Postfix commands. A local user can execute a specially crafted command and perform a denial of service (DoS) attack.
Affected software
Postfix
Gentoo Linux
mail-mta/postfix
Gentoo Linux
mail-mta/postfix
How to mitigate CVE-2008-3889
Install updates from vendor's website.
Postfix - addressed in versions 2.4.9, 2.5.5
mail-mta/postfix - update to 2.5.3-r1
mail-mta/postfix - update to 2.5.3-r1
External References
- http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00004.html
- http://security.gentoo.org/glsa/glsa-200809-09.xml
- http://securityreason.com/securityalert/4239
- http://securitytracker.com/id?1020800
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0311
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:190
- http://www.postfix.org/announcements/20080902.html
- http://www.securityfocus.com/archive/1/495894/100/0/threaded
- http://www.securityfocus.com/archive/1/496420/100/0/threaded
- http://www.securityfocus.com/archive/1/498037/100/0/threaded
- http://www.securityfocus.com/bid/30977
- http://www.ubuntu.com/usn/usn-642-1
- http://www.wekk.net/research/CVE-2008-3889/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44865
- https://www.exploit-db.com/exploits/6472
- https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00271.html
- https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00287.html