The balancer_handler function in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6, when a threaded Multi-Processing Module is used, allows remote authenticated users to cause a denial of service (child process crash) via an invalid bb variable.

References

• https://nvd.nist.gov/vuln/detail/CVE-2007-6422
• https://exchange.xforce.ibmcloud.com/vulnerabilities/39476
• https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r7dd6be4dc38148704f2edafb44a8712abaa3a2be120d6c3314d55919@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r84d043c2115176958562133d96d851495d712aa49da155d81f6733be@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
• https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b@%3Ccvs.httpd.apache.org%3E
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10181
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8690
• https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00541.html
• https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00562.html
• http://httpd.apache.org/security/vulnerabilities_22.html
• http://lists.opensuse.org/opensuse-security-announce/2008-04/msg00004.html
• http://secunia.com/advisories/28526
• http://secunia.com/advisories/28749
• http://secunia.com/advisories/28977
• http://secunia.com/advisories/29348
• http://secunia.com/advisories/29640
• http://security.gentoo.org/glsa/glsa-200803-19.xml
• http://securityreason.com/securityalert/3523
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:016
• http://www.redhat.com/support/errata/RHSA-2008-0008.html
• http://www.redhat.com/support/errata/RHSA-2008-0009.html
• http://www.securityfocus.com/archive/1/486169/100/0/threaded
• http://www.securityfocus.com/bid/27236
• http://www.ubuntu.com/usn/usn-575-1
• http://www.vupen.com/english/advisories/2008/0048