CVE-2011-1471 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 13.2% (pctl 96)
Patch early
A public exploit exists.
Description
Integer signedness error in zip_stream.c in the Zip extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (CPU consumption) via a malformed archive file that triggers errors in zip_fread function calls.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| EPSS | 13.19% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-189 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-03-20 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| php | php |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | PHP < 5.3.6 'Zip' Extension - 'zip_fread()' Denial of Service | 2011-03-10 |
References
- http://bugs.php.net/bug.php?id=49072
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://support.apple.com/kb/HT5002
- http://www.debian.org/security/2011/dsa-2266
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
- http://www.php.net/ChangeLog-5.php
- http://www.redhat.com/support/errata/RHSA-2011-1423.html
- http://www.securityfocus.com/bid/46975
- http://www.vupen.com/english/advisories/2011/0744
- http://bugs.php.net/bug.php?id=49072
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://support.apple.com/kb/HT5002
- http://www.debian.org/security/2011/dsa-2266
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
- http://www.php.net/ChangeLog-5.php
- http://www.redhat.com/support/errata/RHSA-2011-1423.html
- http://www.securityfocus.com/bid/46975
- http://www.vupen.com/english/advisories/2011/0744
→ the Explorer · watch your stack · NVD