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…

Description

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.

Scores

EPSS (exploitation in 30 days)

0.70% · top 47% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (22)

• 31986 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• FEDORA-2008-8595 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 32231 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20080916 [Suspected Spam][CVE-2008-4042] Postfix Linux-only local denial of service - PoC (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 31982 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• USN-642-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 30977 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• FEDORA-2008-8593 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 31800 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• postfix-filedescriptor-dos(44865) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 4239 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
• SUSE-SR:2008:018 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• GLSA-200809-09 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• http://www.wekk.net/research/CVE-2008-3889/ (opens in a new tab)x_refsource_MISCx_transferred
• 31716 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 6472 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
• MDVSA-2008:190 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 1020800 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• http://www.postfix.org/announcements/20080902.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20081104 rPSA-2008-0311-1 postfix (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 20080902 Postfix Linux-only local denial of service (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0311 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2008-3889](https://trackcve.app/badge/CVE-2008-3889.svg)](https://trackcve.app/cve/CVE-2008-3889)

Record last updated 7 Aug 2024, 09:53 UTC.