rhsa-2004_600
Vulnerability from csaf_redhat
Published
2004-12-13 19:26
Modified
2024-09-13 06:22
Summary
Red Hat Security Advisory: apache, mod_ssl security update
Notes
Topic
Updated apache and mod_ssl packages that fix various minor security issues
and bugs in the Apache Web server are now available for Red Hat Enterprise
Linux 2.1.
Details
The Apache HTTP Server is a powerful, full-featured, efficient, and
freely-available Web server. The mod_ssl module provides strong
cryptography for the Apache Web server via the Secure Sockets Layer (SSL)
and Transport Layer Security (TLS) protocols.
A buffer overflow was discovered in the mod_include module. This flaw
could allow a local user who is authorized to create server-side include
(SSI) files to gain the privileges of a httpd child (user 'apache'). The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0940 to this issue.
The mod_digest module does not properly verify the nonce of a client
response by using a AuthNonce secret. This could allow a malicious user who
is able to sniff network traffic to conduct a replay attack against a
website using Digest protection. Note that mod_digest implements an older
version of the MD5 Digest Authentication specification, which is known not
to work with modern browsers. This issue does not affect mod_auth_digest.
(CAN-2003-0987).
An issue has been discovered in the mod_ssl module when configured to use
the "SSLCipherSuite" directive in a directory or location context. If a
particular location context has been configured to require a specific set
of cipher suites, then a client is able to access that location using
any cipher suite allowed by the virtual host configuration. (CAN-2004-0885).
Several bugs in mod_ssl were also discovered, including:
- memory leaks in SSL variable handling
- possible crashes in the dbm and shmht session caches
Red Hat Enterprise Linux 2.1 users of the Apache HTTP Server should upgrade
to these erratum packages, which contains Apache version 1.3.27 with
backported patches correcting 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.
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"text": "The Apache HTTP Server is a powerful, full-featured, efficient, and\nfreely-available Web server. The mod_ssl module provides strong\ncryptography for the Apache Web server via the Secure Sockets Layer (SSL)\nand Transport Layer Security (TLS) protocols.\n\nA buffer overflow was discovered in the mod_include module. This flaw\ncould allow a local user who is authorized to create server-side include\n(SSI) files to gain the privileges of a httpd child (user \u0027apache\u0027). The\nCommon Vulnerabilities and Exposures project (cve.mitre.org) has assigned\nthe name CAN-2004-0940 to this issue.\n\nThe mod_digest module does not properly verify the nonce of a client\nresponse by using a AuthNonce secret. This could allow a malicious user who\nis able to sniff network traffic to conduct a replay attack against a\nwebsite using Digest protection. Note that mod_digest implements an older\nversion of the MD5 Digest Authentication specification, which is known not\nto work with modern browsers. This issue does not affect mod_auth_digest. \n(CAN-2003-0987).\n\nAn issue has been discovered in the mod_ssl module when configured to use\nthe \"SSLCipherSuite\" directive in a directory or location context. If a\nparticular location context has been configured to require a specific set\nof cipher suites, then a client is able to access that location using\nany cipher suite allowed by the virtual host configuration. (CAN-2004-0885). \n\nSeveral bugs in mod_ssl were also discovered, including:\n\n- memory leaks in SSL variable handling\n\n- possible crashes in the dbm and shmht session caches\n\nRed Hat Enterprise Linux 2.1 users of the Apache HTTP Server should upgrade\nto these erratum packages, which contains Apache version 1.3.27 with\nbackported patches correcting these issues.",
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"notes": [
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"text": "mod_digest for Apache before 1.3.31 does not properly verify the nonce of a client response by using a AuthNonce secret.",
"title": "Vulnerability description"
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"text": "httpd mod_digest nonce not verified",
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"release_date": "2003-12-18T00:00:00+00:00",
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{
"category": "vendor_fix",
"details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied. Use Red Hat\nNetwork to download and update your packages. To launch the Red Hat\nUpdate Agent, use the following command:\n\n up2date\n\nFor information on how to install packages manually, refer to the\nfollowing Web page for the System Administration or Customization\nguide specific to your system:\n\n http://www.redhat.com/docs/manuals/enterprise/",
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"title": "Vulnerability description"
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"title": "mod_ssl SSLCipherSuite bypass"
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"ids": [
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"notes": [
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"text": "Buffer overflow in the get_tag function in mod_include for Apache 1.3.x to 1.3.32 allows local users who can create SSI documents to execute arbitrary code as the apache user via SSI (XSSI) documents that trigger a length calculation error.",
"title": "Vulnerability description"
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"release_date": "2004-10-21T00:00:00+00:00",
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"url": "https://access.redhat.com/errata/RHSA-2004:600"
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd mod_include SSI overflow"
}
]
}
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