Vulnerability Details : CVE-2007-4661
The chunk_split function in string.c in PHP 5.2.3 does not properly calculate the needed buffer size due to precision loss when performing integer arithmetic with floating point numbers, which has unknown attack vectors and impact, possibly resulting in a heap-based buffer overflow. NOTE: this is due to an incomplete fix for CVE-2007-2872.
Vulnerability category: Overflow
Threat overview for CVE-2007-4661
Top countries where our scanners detected CVE-2007-4661
Top open port discovered on systems with this issue
80
IPs affected by CVE-2007-4661 1,213
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2007-4661
Probability of exploitation activity in the next 30 days: 1.54%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 86 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2007-4661
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
CWE ids for CVE-2007-4661
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
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Assigned by: nvd@nist.gov (Primary)
Vendor statements for CVE-2007-4661
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Red Hat 2007-09-05Not vulnerable. Red Hat did not include an incomplete fix for CVE-2007-2872 for PHP in Red Hat Enterprise Linux or Red Hat Application Stack.
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Mandriva 2007-09-18Not vulnerable. Mandriva has not issued an update to date to fix CVE-2007-2872 and the updates in progress are using a correct fix.
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http://www.php.net/ChangeLog-5.php#5.2.4
PHP: PHP 5 ChangeLog
- https://issues.rpath.com/browse/RPL-1702
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https://usn.ubuntu.com/549-1/
404: Page not found | Ubuntu
- http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
- http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
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http://www.php.net/releases/5_2_4.php
PHP: PHP 5.2.4 Release AnnouncementPatch
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https://launchpad.net/bugs/173043
Bug #173043 “php5 5.2.3-1ubuntu6.1 introduced segfault regressio...” : Bugs : php5 package : Ubuntu
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http://cvs.php.net/viewvc.cgi/php-src/ext/standard/string.c?r1=1.445.2.14.2.58&r2=1.445.2.14.2.59
Exploit
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http://www.ubuntu.com/usn/usn-549-2
USN-549-2: PHP regression | Ubuntu security notices | Ubuntu
- cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*