CVE-2009-2699
The Solaris pollset feature in the Event Port backend in poll/unix/port.c in the Apache Portable Runtime (APR) library before 1.3.9, as used in the Apache HTTP Server before 2.2.14 and other products, does not properly handle errors, which allows remote attackers to cause a denial of service (daemon hang) via unspecified HTTP requests, related to the prefork and event MPMs.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
- CWE-667
- EPSS score
- 14.2% (97th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-2691)
- Published
- October 13, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-2691 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- apache / http server
- apache / portable runtime
References
- http://marc.info/?l=bugtraq&m=133355494609819&w=2(Issue Tracking, Mailing List, Third Party Advisory)
- http://securitytracker.com/id?1022988(Broken Link, Third Party Advisory, VDB Entry)
- http://www.apache.org/dist/httpd/CHANGES_2.2.14(Broken Link, Vendor Advisory)
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:150(Broken Link)
- http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html(Third Party Advisory)
- http://www.securityfocus.com/bid/36596(Patch, Third Party Advisory, VDB Entry)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53666(Third Party Advisory, VDB Entry)
- https://issues.apache.org/bugzilla/show_bug.cgi?id=47645(Issue Tracking, Vendor Advisory)
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/rad2acee3ab838b52c04a0698b1728a9a43467bf365bd481c993c535d%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
- https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E(Mailing List, Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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