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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200406-20] FreeS/WAN, Openswan, strongSwan: Vulnerabilities in certificate handling Vulnerability Assessment Details
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[GLSA-200406-20] FreeS/WAN, Openswan, strongSwan: Vulnerabilities in certificate handling |
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FreeS/WAN, Openswan, strongSwan: Vulnerabilities in certificate handling Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200406-20 (FreeS/WAN, Openswan, strongSwan: Vulnerabilities in certificate handling) All these IPsec implementations have several bugs in the verify_x509cert() function, which performs certificate validation, that make them vulnerable to malicious PKCS#7 wrapped objects. Impact With a carefully crafted certificate payload a possible hacker can successfully authenticate against FreeS/WAN, Openswan, strongSwan or Super-FreeS/WAN, or make the daemon go into an endless loop. Workaround There is no known workaround at this time. All users are encouraged to upgrade to the latest available version. References: http://lists.openswan.org/pipermail/dev/2004-June/000370.html Solution: All FreeS/WAN 1.9x users should upgrade to the latest stable version: # emerge sync # emerge -pv "=net-misc/freeswan-1.99-r1" # emerge "=net-misc/freeswan-1.99-r1" All FreeS/WAN 2.x users should upgrade to the latest stable version: # emerge sync # emerge -pv ">=net-misc/freeswan-2.04-r1" # emerge ">=net-misc/freeswan-2.04-r1" All Openswan 1.x users should upgrade to the latest stable version: # emerge sync # emerge -pv "=net-misc/openswan-1.0.6_rc1" # emerge "=net-misc/openswan-1.0.6_rc1" All Openswan 2.x users should upgrade to the latest stable version: # emerge sync # emerge -pv ">=net-misc/openswan-2.1.4" # emerge ">=net-misc/openswan-2.1.4" All strongSwan users should upgrade to the latest stable version: # emerge sync # emerge -pv ">=net-misc/strongswan-2.1.3" # emerge ">=net-misc/strongswan-2.1.3" All Super-FreeS/WAN users should migrate to the latest stable version of Openswan. Note that Portage will force a move for Super-FreeS/WAN users to Openswan. # emerge sync # emerge -pv "=net-misc/openswan-1.0.6_rc1" # emerge "=net-misc/openswan-1.0.6_rc1" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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