UpHeron
All vulnerabilities

Servers and applications

CVE-2008-3889

Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.

Severity
Low 2.1
Published
12 Sept 2008
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.7% in the next 30 daysHigher than 53% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Needs local access · No login needed
Attacker can
Slow it down
CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
PostfixServers and applications · cpe:a:postfix:postfix
  • Version 2.6
  • Version 2.5.3
  • Version 2.5.2
  • Version 2.5.1
All 13 release lines
  • Version 2.4
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.4
  • Version 2.4.5
  • Version 2.4.6
  • Version 2.4.7
  • Version 2.4.8
  • Version 2.5.1
  • Version 2.5.2
  • Version 2.5.3
  • Version 2.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2008-3889
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2008-3889