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Fencer Intel
medium 5.0

CVE-2011-3182 json

PHP before 5.3.7 does not properly check the return values of the malloc, calloc, and realloc library functions, which allows context-depen…

published 2011-08-25 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3149

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.2%
EPSS 19.2% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

PHP before 5.3.7 does not properly check the return values of the malloc, calloc, and realloc library functions, which allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) or trigger a buffer overflow by leveraging the ability to provide an arbitrary value for a function argument, related to (1) ext/curl/interface.c, (2) ext/date/lib/parse_date.c, (3) ext/date/lib/parse_iso_intervals.c, (4) ext/date/lib/parse_tz.c, (5) ext/date/lib/timelib.c, (6) ext/pdo_odbc/pdo_odbc.c, (7) ext/reflection/php_reflection.c, (8) ext/soap/php_sdl.c, (9) ext/xmlrpc/libxmlrpc/base64.c, (10) TSRM/tsrm_win32.c, and (11) the strtotime function.

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-2011-3182 updated cvss 5.1

php: multiple NULL pointer dereferences

  • Red Hat Enterprise Linux 4 php Red Hat Enterprise Linux 5 php, php53 Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more
    not affected: vulnerable code not present

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

Timeline

  1. First public exploit (EDB-36070)
  2. Published

Exploit prediction

19.15% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-36070 PHP < 5.3.7 - Multiple Null Pointer Dereference Denial of Service Vulnerabilities dos, 2011-08-19
  • securityreason.com http://securityreason.com/achievement_securityalert/101 referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2011/08/22/9 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/49249 referenced PoC, tagged "exploit" by a source, unverified
  • marc.info http://marc.info/?l=full-disclosure&m=131373057621672&w=2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

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.