CVE & CISA-KEV CatalogNVD
CVE-2009-1956
MEDIUMEPSS 96th pctl6.4
CVSS v2
Description
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
12.04%probability of exploitation in 30 days
96thpercentile
Very high risk: more likely to be exploited than 96% of all known CVEs.
References
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- http://marc.info/?l=bugtraq&m=129190899612998&w=2
- http://secunia.com/advisories/34724
- http://secunia.com/advisories/35284
- http://secunia.com/advisories/35395
- http://secunia.com/advisories/35487
- http://secunia.com/advisories/35565
- http://secunia.com/advisories/35710
- http://secunia.com/advisories/35797
- http://secunia.com/advisories/35843
- http://secunia.com/advisories/37221
- http://security.gentoo.org/glsa/glsa-200907-03.xml
- http://support.apple.com/kb/HT3937
- http://svn.apache.org/viewvc?view=rev&revision=768417
- http://www-01.ibm.com/support/docview.wss?uid=swg1PK88341
- http://www-01.ibm.com/support/docview.wss?uid=swg1PK91241
- http://www-01.ibm.com/support/docview.wss?uid=swg1PK99478
- http://www-01.ibm.com/support/docview.wss?uid=swg27014463
- http://www.apache.org/dist/apr/CHANGES-APR-UTIL-1.3
- http://www.mail-archive.com/dev%40apr.apache.org/msg21591.html
- http://www.mail-archive.com/dev%40apr.apache.org/msg21592.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:131
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
- http://www.openwall.com/lists/oss-security/2009/06/06/1
- http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
- http://www.redhat.com/support/errata/RHSA-2009-1107.html
- http://www.redhat.com/support/errata/RHSA-2009-1108.html
- http://www.securityfocus.com/bid/35251
- http://www.ubuntu.com/usn/usn-786-1
- http://www.ubuntu.com/usn/usn-787-1
- http://www.vupen.com/english/advisories/2009/1907
- http://www.vupen.com/english/advisories/2009/3184
- https://bugzilla.redhat.com/show_bug.cgi?id=504390
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rad2acee3ab838b52c04a0698b1728a9a43467bf365bd481c993c535d%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11567
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12237
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg01173.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg01201.html
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.