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Fencer Intel
medium 6.4

CVE-2011-4566 json

Integer overflow in the exif_process_IFD_TAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote a…

published 2011-11-29 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4492

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.6%
EPSS 6.6% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Integer overflow in the exif_process_IFD_TAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote attackers to read the contents of arbitrary memory locations or cause a denial of service via a crafted offset_val value in an EXIF header in a JPEG file, a different vulnerability than CVE-2011-0708.

Patch / fix

  • php php 5.3.9
  • php RHEL 4 4.3.9-3.35
  • php-gd RHEL 4 4.3.9-3.35
  • php-imap RHEL 4 4.3.9-3.35
  • php-ldap RHEL 4 4.3.9-3.35
  • php-odbc RHEL 4 4.3.9-3.35
  • php-pear RHEL 4 4.3.9-3.35
  • php-snmp RHEL 4 4.3.9-3.35
  • php-mysql RHEL 4 4.3.9-3.35

red hat advisories RHSA-2012:0071RHSA-2012:0033RHSA-2012:0019

  • php7 openSUSE Tumbleweed 7.0.14-1.4
  • php5 openSUSE Tumbleweed 5.6.28-1.1
  • php8 openSUSE Tumbleweed 8.0.11-1.1

opensuse advisories openSUSE-SU-2024:10290-1openSUSE-SU-2024:10344-1openSUSE-SU-2024:11169-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-4566 updated cvss 5.8

php: integer overflow in exif_process_IFD_TAG() may lead to DoS or arbitrary memory disclosure

  • Red Hat Enterprise Linux (v. 5 server) php 5.1.6-27.el5_7.4, php53 5.3.3-1.el5_7.5, php-gd 5.1.6-27.el5_7.4, php-cli 5.1.6-27.el5_7.4, php-dba 5.1.6-27.el5_7.4, php-pdo 5.1.6-27.el5_7.4, +32 more
    fixed: vendor fix RHSA-2012:0033
  • Red Hat Enterprise Linux AS version 4 php 4.3.9-3.35, php-gd 4.3.9-3.35, php-imap 4.3.9-3.35, php-ldap 4.3.9-3.35, php-odbc 4.3.9-3.35, php-pear 4.3.9-3.35, +7 more
    fixed: vendor fix RHSA-2012:0071
  • Red Hat Enterprise Linux Desktop Optional (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more
    fixed: vendor fix RHSA-2012:0019
  • Red Hat Enterprise Linux Desktop version 4 php 4.3.9-3.35, php-gd 4.3.9-3.35, php-imap 4.3.9-3.35, php-ldap 4.3.9-3.35, php-odbc 4.3.9-3.35, php-pear 4.3.9-3.35, +7 more Red Hat Enterprise Linux ES version 4 php 4.3.9-3.35, php-gd 4.3.9-3.35, php-imap 4.3.9-3.35, php-ldap 4.3.9-3.35, php-odbc 4.3.9-3.35, php-pear 4.3.9-3.35, +7 more
    fixed: vendor fix RHSA-2012:0071
  • Red Hat Enterprise Linux HPC Node (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more Red Hat Enterprise Linux HPC Node Optional (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more Red Hat Enterprise Linux Server (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more Red Hat Enterprise Linux Server Optional (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more Red Hat Enterprise Linux Workstation (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more Red Hat Enterprise Linux Workstation Optional (v. 6) php 5.3.3-3.el6_2.5, php-gd 5.3.3-3.el6_2.5, php-cli 5.3.3-3.el6_2.5, php-dba 5.3.3-3.el6_2.5, php-pdo 5.3.3-3.el6_2.5, php-xml 5.3.3-3.el6_2.5, +19 more
    fixed: vendor fix RHSA-2012:0019
  • Red Hat Enterprise Linux WS version 4 php 4.3.9-3.35, php-gd 4.3.9-3.35, php-imap 4.3.9-3.35, php-ldap 4.3.9-3.35, php-odbc 4.3.9-3.35, php-pear 4.3.9-3.35, +7 more
    fixed: vendor fix RHSA-2012:0071
  • Red Hat RHEL Desktop Workstation (v. 5 client) php 5.1.6-27.el5_7.4, php53 5.3.3-1.el5_7.5, php-gd 5.1.6-27.el5_7.4, php-cli 5.1.6-27.el5_7.4, php-dba 5.1.6-27.el5_7.4, php-pdo 5.1.6-27.el5_7.4, +32 more
    fixed: vendor fix RHSA-2012:0033

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.56% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.php.net https://bugs.php.net/bug.php?id=60150 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.