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.
http://www.securityfocus.com/bid/46975
http://www.redhat.com/support/errata/RHSA-2011-1423.html
http://www.debian.org/security/2011/dsa-2266
http://support.apple.com/kb/HT5002
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
http://www.vupen.com/english/advisories/2011/0744
http://www.php.net/ChangeLog-5.php
Source: Mitre, NVD
Published: 2011-03-20
Updated: 2025-04-11
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
EPSS: 0.1324