CVE-2007-1521 EXPLOIT
6.8
MEDIUM · CVSS 2.0 · EPSS 8.5% (pctl 95)
Patch early
A public exploit exists.
Description
Double free vulnerability in PHP before 4.4.7, and 5.x before 5.2.2, allows context-dependent attackers to execute arbitrary code by interrupting the session_regenerate_id function, as demonstrated by calling a userspace error handler or triggering a memory limit violation.
Scoring
| CVSS | 6.8 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| EPSS | 8.49% — more likely to be exploited than 95% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2007-03-20 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| php | php |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | PHP 5.2.1 - 'session_regenerate_id()' Double-Free | 2007-03-14 |
References
- http://docs.info.apple.com/article.html?artnum=306172
- http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
- http://secunia.com/advisories/24505
- http://secunia.com/advisories/25025
- http://secunia.com/advisories/25056
- http://secunia.com/advisories/25057
- http://secunia.com/advisories/25062
- http://secunia.com/advisories/25445
- http://secunia.com/advisories/26235
- http://security.gentoo.org/glsa/glsa-200705-19.xml
- http://us2.php.net/releases/4_4_7.php
- http://us2.php.net/releases/5_2_2.php
- http://www.debian.org/security/2007/dsa-1282
- http://www.debian.org/security/2007/dsa-1283
- http://www.novell.com/linux/security/advisories/2007_32_php.html
- http://www.php-security.org/MOPB/MOPB-22-2007.html
- http://www.securityfocus.com/bid/22968
- http://www.securityfocus.com/bid/25159
- http://www.ubuntu.com/usn/usn-455-1
- http://www.vupen.com/english/advisories/2007/0960
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