Description
The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mt_rand functions.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Canonical / Ubuntu Linux7.04 – 7.04
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux7.10 – 7.10
- Canonical / Ubuntu Linux6.06 – 6.06
- Debian / debian_linux4.0 – 4.0
- fedoraproject / fedora9 – 9
- fedoraproject / fedora8 – 8
- php / PHP4.0.0 – 4.4.8
References
- MISChttps://www.redhat.com/archives/fedora-package-announce/2008-June/msg00779.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/32746
- MISChttp://archives.neohapsis.com/archives/fulldisclosure/2008-05/0103.html
- MISChttp://security.gentoo.org/glsa/glsa-200811-05.xml
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0546.html
- MISChttps://www.redhat.com/archives/fedora-package-announce/2008-June/msg00773.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/30828
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:128
- MISChttp://securityreason.com/securityalert/3859
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0582.html
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-628-1
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0545.html
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/42226
- VENDOR_ADVISORYhttp://secunia.com/advisories/31124
- VENDOR_ADVISORYhttp://secunia.com/advisories/31119
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:129
- VENDOR_ADVISORYhttp://secunia.com/advisories/31200
- VENDOR_ADVISORYhttp://secunia.com/advisories/30757
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0544.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/35003
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:125
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0505.html
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10844
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:130
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:126
- MISChttp://www.securityfocus.com/archive/1/491683/100/0/threaded
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:127
- VENDOR_ADVISORYhttp://www.sektioneins.de/advisories/SE-2008-02.txt
- VENDOR_ADVISORYhttp://www.debian.org/security/2009/dsa-1789