var-201106-0064
Vulnerability from variot
Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list. Tor is a second generation onion routing implementation. Tor is prone to a denial-of-service vulnerability that affects directory authority. Versions prior to Tor 0.2.1.30 are vulnerable. ----------------------------------------------------------------------
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For more information: SA43548
SOLUTION: Apply updated packages via the yum utility ("yum update tor"). ----------------------------------------------------------------------
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TITLE: Tor "policy_summarize()" Directory Authority Denial of Service Vulnerability
SECUNIA ADVISORY ID: SA43548
VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/43548/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=43548
RELEASE DATE: 2011-03-20
DISCUSS ADVISORY: http://secunia.com/advisories/43548/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s)
http://secunia.com/advisories/43548/
ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=43548
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DESCRIPTION: A vulnerability has been reported in Tor, which can be exploited by malicious people to cause a DoS (Denial of Service).
SOLUTION: Update to version 0.2.1.30.
PROVIDED AND/OR DISCOVERED BY: The vendor credits piebeer.
ORIGINAL ADVISORY: https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html
OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
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. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201110-13
http://security.gentoo.org/
Severity: High Title: Tor: Multiple vulnerabilities Date: October 18, 2011 Bugs: #351920, #359789 ID: 201110-13
Synopsis
Multiple vulnerabilities were found in Tor, the most severe of which may allow a remote attacker to execute arbitrary code.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/tor < 0.2.1.30 >= 0.2.1.30
Description
Multiple vulnerabilities have been discovered in Tor. Please review the CVE identifiers referenced below for details.
Workaround
There is no known workaround at this time.
Resolution
All Tor users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/tor-0.2.1.30"
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since April 2, 2011. It is likely that your system is already no longer affected by this issue.
References
[ 1 ] CVE-2011-0015 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0015 [ 2 ] CVE-2011-0016 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0016 [ 3 ] CVE-2011-0427 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0427 [ 4 ] CVE-2011-0490 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0490 [ 5 ] CVE-2011-0491 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0491 [ 6 ] CVE-2011-0492 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0492 [ 7 ] CVE-2011-0493 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0493 [ 8 ] CVE-2011-1924 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1924
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201110-13.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 2011 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
Show details on source website{
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Tor is prone to a denial-of-service vulnerability that affects directory authority. \nVersions prior to Tor 0.2.1.30 are vulnerable. ----------------------------------------------------------------------\n\n\nJoin Secunia @ FIRST Conference, 12-17 June, Hilton Vienna, Austria\nSee to the presentation \"The Dynamics and Threats of End-Point Software Portfolios\" by Secunia\u0027s Research Analyst Director, Stefan Frei. \n\nFor more information:\nSA43548\n\nSOLUTION:\nApply updated packages via the yum utility (\"yum update tor\"). ----------------------------------------------------------------------\n\n\nMeet Secunia @ Microsoft Management Summit (MMS) in Las Vegas, USA (21-25 March). \n\nhttp://secunia.com/company/events/mms_2011/\n\n\n----------------------------------------------------------------------\n\nTITLE:\nTor \"policy_summarize()\" Directory Authority Denial of Service\nVulnerability\n\nSECUNIA ADVISORY ID:\nSA43548\n\nVERIFY ADVISORY:\nSecunia.com\nhttp://secunia.com/advisories/43548/\nCustomer Area (Credentials Required)\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=43548\n\nRELEASE DATE:\n2011-03-20\n\nDISCUSS ADVISORY:\nhttp://secunia.com/advisories/43548/#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/43548/\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=43548\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 Tor, which can be exploited by\nmalicious people to cause a DoS (Denial of Service). \n\nSOLUTION:\nUpdate to version 0.2.1.30. \n\nPROVIDED AND/OR DISCOVERED BY:\nThe vendor credits piebeer. \n\nORIGINAL ADVISORY:\nhttps://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\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. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201110-13\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n http://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n Title: Tor: Multiple vulnerabilities\n Date: October 18, 2011\n Bugs: #351920, #359789\n ID: 201110-13\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities were found in Tor, the most severe of which\nmay allow a remote attacker to execute arbitrary code. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 net-misc/tor \u003c 0.2.1.30 \u003e= 0.2.1.30\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Tor. Please review the\nCVE identifiers referenced below for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Tor users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=net-misc/tor-0.2.1.30\"\n\nNOTE: This is a legacy GLSA. Updates for all affected architectures are\navailable since April 2, 2011. It is likely that your system is already\nno longer affected by this issue. \n\nReferences\n==========\n\n[ 1 ] CVE-2011-0015\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0015\n[ 2 ] CVE-2011-0016\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0016\n[ 3 ] CVE-2011-0427\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0427\n[ 4 ] CVE-2011-0490\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0490\n[ 5 ] CVE-2011-0491\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0491\n[ 6 ] CVE-2011-0492\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0492\n[ 7 ] CVE-2011-0493\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0493\n[ 8 ] CVE-2011-1924\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1924\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-201110-13.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 2011 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",
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Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.
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