Integer signedness error in zip_stream.c in the Zip extension in PHP before 5.3.6 allows…
Priority LOW 35CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.13189 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2011:1423 Released 2011-11-02 · Red Hat rating Moderatephp53 and php security update
- RHEL Desktop Workstation (v. 5 client) php53-5.3.3-1.el5_7.3, php53-5.3.3-1.el5_7.3.i386, php53-bcmath-5.3.3-1.el5_7.3 +39
- Red Hat Enterprise Linux (v. 5 server) php53-5.3.3-1.el5_7.3, php53-5.3.3-1.el5_7.3.i386, php53-5.3.3-1.el5_7.3.ia64 +47
- Red Hat Enterprise Linux Server (v. 6) php-5.3.3-3.el6_1.3, php-cli-5.3.3-3.el6_1.3, php-common-5.3.3-3.el6_1.3 +9
- Red Hat Enterprise Linux Server Optional (v. 6) php-5.3.3-3.el6_1.3, php-bcmath-5.3.3-3.el6_1.3, php-dba-5.3.3-3.el6_1.3 +12
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHEL Desktop Workstation (v. 5 client) | Fixed | RHSA-2011:1423 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2011:1423 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:1423 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2011:1423 |
Not affected: 2 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1471
- 2026-10-03 Alias added: GHSA-h5g9-76vr-9xfh
References
More Php vulnerabilities
- TI-2024-04260 Argument Injection in PHP-CGI KEVCVSS 3.1CRITICAL 9.8
- TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2012-01607 sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
- TI-2026-78793 Out-of-memory handling flaw in PHP allows remote code execution KEVCVSS 4.0CRITICAL 9.2
- TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
Sources
- CVE-2011-1471 · CVE Program
- CVE-2011-1471 · NVD
- FIRST EPSS
- GHSA-h5g9-76vr-9xfh · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1471 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences