RHSA-2005_031

Vulnerability from csaf_redhat - Published: 2005-01-19 18:46 - Updated: 2024-11-14 10:03
Summary
Red Hat Security Advisory: php security update
Severity
Important
Notes
Topic: Updated php packages that fix various security issues are now available for Red Hat Enterprise Linux 2.1.
Details: PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server. A double-free bug was found in the deserialization code of PHP. PHP applications use the unserialize function on untrusted user data, which could allow a remote attacker to gain access to memory or potentially execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1019 to this issue. Flaws were found in the pack and unpack PHP functions. These functions do not normally pass user supplied data, so they would require a malicious PHP script to be exploited. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1018 to this issue. A bug was discovered in the initialization of the OpenSSL library, such that the curl extension could not be used to perform HTTP requests over SSL unless the php-imap package was installed. Users of PHP should upgrade to these updated packages, which contain fixes for these issues.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2004-1018

Multiple integer handling errors in PHP before 4.3.10 allow attackers to bypass safe mode restrictions, cause a denial of service, or execute arbitrary code via (1) a negative offset value to the shmop_write function, (2) an "integer overflow/underflow" in the pack function, or (3) an "integer overflow/underflow" in the unpack function. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute. This candidate may change significantly in the future as a result of further discussion.

Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux AS (Advanced Server) version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::as —
Vendor Fix fix
Red Hat Enterprise Linux ES version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::es —
Vendor Fix fix
Red Hat Enterprise Linux WS version 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::ws —
Vendor Fix fix
Red Hat Linux Advanced Workstation 2.1
Red Hat / Red Hat Enterprise Linux
 cpe:/o:redhat:enterprise_linux:2.1::aw —
Vendor Fix fix
Threats
Impact Low
CVE-2004-1019

The deserialization code in PHP before 4.3.10 and PHP 5.x up to 5.0.2 allows remote attackers to cause a denial of service and execute arbitrary code via untrusted data to the unserialize function that may trigger "information disclosure, double-free and negative reference index array underflow" results.

Affected products
Fixed 4 products, the same list as for CVE-2004-1018
Threats
Impact Important
References
To clipboard 

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        "text": "PHP is an HTML-embedded scripting language commonly used with the Apache\nHTTP Web server.\n\nA double-free bug was found in the deserialization code of PHP. PHP\napplications use the unserialize function on untrusted user data, which\ncould allow a remote attacker to gain access to memory or potentially\nexecute arbitrary code.  The Common Vulnerabilities and Exposures project\n(cve.mitre.org) has assigned the name CAN-2004-1019 to this issue.\n\nFlaws were found in the pack and unpack PHP functions. These functions\ndo not normally pass user supplied data, so they would require a malicious\nPHP script to be exploited. The Common Vulnerabilities and Exposures\nproject (cve.mitre.org) has assigned the name CAN-2004-1018 to this issue.\n\nA bug was discovered in the initialization of the OpenSSL library, such\nthat the curl extension could not be used to perform HTTP requests over SSL\nunless the php-imap package was installed.\n\nUsers of PHP should upgrade to these updated packages, which contain fixes\nfor these issues.",
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}



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