var-201112-0347
Vulnerability from variot
Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response. nginx is prone to a remote heap-based buffer-overflow vulnerability. Successfully exploiting this issue allows attackers to execute arbitrary code in the context of the vulnerable application. Failed exploit attempts will result in a denial-of-service condition. Versions prior to nginx 1.0.10 are vulnerable. nginx is a lightweight web server/reverse proxy server and email (IMAP/POP3) proxy server developed by Russian programmer Igor Sysoev. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201203-22
http://security.gentoo.org/
Severity: High Title: nginx: Multiple vulnerabilities Date: March 28, 2012 Bugs: #293785, #293786, #293788, #389319, #408367 ID: 201203-22
Synopsis
Multiple vulnerabilities have been found in nginx, the worst of which may allow execution of arbitrary code.
Background
nginx is a robust, small, and high performance HTTP and reverse proxy server.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/nginx < 1.0.14 >= 1.0.14
Description
Multiple vulnerabilities have been found in nginx:
- The TLS protocol does not properly handle session renegotiation requests (CVE-2009-3555).
- The "ngx_http_process_request_headers()" function in ngx_http_parse.c could cause a NULL pointer dereference (CVE-2009-3896).
- nginx does not properly sanitize user input for the the WebDAV COPY or MOVE methods (CVE-2009-3898).
- The "ngx_resolver_copy()" function in ngx_resolver.c contains a boundary error which could cause a heap-based buffer overflow (CVE-2011-4315).
- nginx does not properly parse HTTP header responses which could expose sensitive information (CVE-2012-1180).
Workaround
There is no known workaround at this time.
Resolution
All nginx users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.0.14"
References
[ 1 ] CVE-2009-3555 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3555 [ 2 ] CVE-2009-3896 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3896 [ 3 ] CVE-2009-3898 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3898 [ 4 ] CVE-2011-4315 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4315 [ 5 ] CVE-2012-1180 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1180
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201203-22.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2012 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5 . ----------------------------------------------------------------------
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TITLE: nginx DNS Response Handling Buffer Overflow Vulnerability
SECUNIA ADVISORY ID: SA46798
VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/46798/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=46798
RELEASE DATE: 2011-11-17
DISCUSS ADVISORY: http://secunia.com/advisories/46798/#comments
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DESCRIPTION: A vulnerability has been reported in nginx, which can be exploited by malicious people to potentially compromise a vulnerable system.
Successful exploitation may allow execution of arbitrary code but requires that the custom DNS resolver is enabled (disabled by default).
SOLUTION: Update to version 1.0.10.
PROVIDED AND/OR DISCOVERED BY: Ben Hawkes
ORIGINAL ADVISORY: nginx: http://nginx.org/en/CHANGES-1.0
Ben Hawkes: http://www.openwall.com/lists/oss-security/2011/11/17/8
OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/
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Failed exploit attempts will result in a denial-of-service condition. \nVersions prior to nginx 1.0.10 are vulnerable. nginx is a lightweight web server/reverse proxy server and email (IMAP/POP3) proxy server developed by Russian programmer Igor Sysoev. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201203-22\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n http://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n Title: nginx: Multiple vulnerabilities\n Date: March 28, 2012\n Bugs: #293785, #293786, #293788, #389319, #408367\n ID: 201203-22\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in nginx, the worst of which\nmay allow execution of arbitrary code. \n\nBackground\n==========\n\nnginx is a robust, small, and high performance HTTP and reverse proxy\nserver. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 www-servers/nginx \u003c 1.0.14 \u003e= 1.0.14\n\nDescription\n===========\n\nMultiple vulnerabilities have been found in nginx:\n\n* The TLS protocol does not properly handle session renegotiation\n requests (CVE-2009-3555). \n* The \"ngx_http_process_request_headers()\" function in ngx_http_parse.c\n could cause a NULL pointer dereference (CVE-2009-3896). \n* nginx does not properly sanitize user input for the the WebDAV COPY\n or MOVE methods (CVE-2009-3898). \n* The \"ngx_resolver_copy()\" function in ngx_resolver.c contains a\n boundary error which could cause a heap-based buffer overflow\n (CVE-2011-4315). \n* nginx does not properly parse HTTP header responses which could\n expose sensitive information (CVE-2012-1180). \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll nginx users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=www-servers/nginx-1.0.14\"\n\nReferences\n==========\n\n[ 1 ] CVE-2009-3555\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3555\n[ 2 ] CVE-2009-3896\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3896\n[ 3 ] CVE-2009-3898\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3898\n[ 4 ] CVE-2011-4315\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4315\n[ 5 ] CVE-2012-1180\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1180\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n http://security.gentoo.org/glsa/glsa-201203-22.xml\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2012 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n. ----------------------------------------------------------------------\n\nSecunia is hiring!\n\nFind your next job here:\n\nhttp://secunia.com/company/jobs/\n\n----------------------------------------------------------------------\n\nTITLE:\nnginx DNS Response Handling Buffer Overflow Vulnerability\n\nSECUNIA ADVISORY ID:\nSA46798\n\nVERIFY ADVISORY:\nSecunia.com\nhttp://secunia.com/advisories/46798/\nCustomer Area (Credentials Required)\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=46798\n\nRELEASE DATE:\n2011-11-17\n\nDISCUSS ADVISORY:\nhttp://secunia.com/advisories/46798/#comments\n\nAVAILABLE ON SITE AND IN CUSTOMER AREA:\n * Last Update\n * Popularity\n * Comments\n * Criticality Level\n * Impact\n * Where\n * Solution Status\n * Operating System / Software\n * CVE Reference(s)\n\nhttp://secunia.com/advisories/46798/\n\nONLY AVAILABLE IN CUSTOMER AREA:\n * Authentication Level\n * Report Reliability\n * Secunia PoC\n * Secunia Analysis\n * Systems Affected\n * Approve Distribution\n * Remediation Status\n * Secunia CVSS Score\n * CVSS\n\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=46798\n\nONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:\n * AUTOMATED SCANNING\n\nhttp://secunia.com/vulnerability_scanning/personal/\nhttp://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/\n\nDESCRIPTION:\nA vulnerability has been reported in nginx, which can be exploited by\nmalicious people to potentially compromise a vulnerable system. \n\nSuccessful exploitation may allow execution of arbitrary code but\nrequires that the custom DNS resolver is enabled (disabled by\ndefault). \n\nSOLUTION:\nUpdate to version 1.0.10. \n\nPROVIDED AND/OR DISCOVERED BY:\nBen Hawkes\n\nORIGINAL ADVISORY:\nnginx:\nhttp://nginx.org/en/CHANGES-1.0\n\nBen Hawkes:\nhttp://www.openwall.com/lists/oss-security/2011/11/17/8\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\nprivate users keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n. ----------------------------------------------------------------------\n\nBecome a PSI 3.0 beta tester!\nTest-drive the new beta version and tell us what you think about its extended automatic update function and significantly enhanced user-interface. This fixes a weakness, a\nsecurity issue, and multiple vulnerabilities, which can be exploited\nby malicious people to disclose certain sensitive information, bypass\ncertain security restrictions, cause a DoS (Denial of Service),\nmanipulate certain data, and potentially compromise a vulnerable\nsystem",
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.