OpenSSL Buffer Overflow in TLS Server Extension Parsing May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1024743 |
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SecurityTracker URL: http://securitytracker.com/id/1024743
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CVE Reference:
CVE-2010-3864
(Links to External Site)
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Updated: Dec 3 2010
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Original Entry Date: Nov 16 2010
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Impact:
Denial of service via network, Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 0.9.8f through 0.9.8o; also 1.0.0, 1.0.0a
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Description:
A vulnerability was reported in OpenSSL. A remote user can cause denial of service conditions. A remote user may be able to execute arbitrary code on the target system.
A remote user can send specially crafted data to exploit a TLS extension parsing race condition and trigger a buffer overflow, causing the target service to crash or potentially execute arbitrary code.
Multi-threaded TLS server applications that use OpenSSL's internal caching mechanism are affected.
The Apache HTTP server and Stunnel are not affected.
Rob Hulswit reported this vulnerability.
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Impact:
A remote user may be able to execute arbitrary code on the target system.
A remote user can cause denial of service conditions.
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Solution:
The vendor has issued a fix (0.9.8p, 1.0.0c).
A patch is also available for 0.9.8 releases.
The vendor's advisories are available at:
http://www.openssl.org/news/secadv_20101116.txt
http://www.openssl.org/news/secadv_20101202.txt
[Editor's note: The vendor initially issued 1.0.0b as a fix for version 1.x. On December 2, 2010, the vendor issued version 1.0.0c to provide a corrected fix.]
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Vendor URL: www.openssl.org/news/secadv_20101116.txt (Links to External Site)
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Cause:
Boundary error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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