The asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before...
Vulnerability Description
The asn1_length function in strongSwan 2.8 before 2.8.11, 4.2 before 4.2.17, and 4.3 before 4.3.3 does not properly handle X.509 certificates with crafted Relative Distinguished Names (RDNs), which allows remote attackers to cause a denial of service (pluto IKE daemon crash) via malformed ASN.1 data. NOTE: this is due to an incomplete fix for CVE-2009-2185.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.openwall.com/lists/oss-security/2009/07/27/1
- http://download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.x.x_asn1_length.patch
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
- http://secunia.com/advisories/36922
- http://www.debian.org/security/2009/dsa-1899
- http://www.vupen.com/english/advisories/2009/2247
- http://up2date.astaro.com/2009/08/up2date_7505_released.html
- http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
- http://download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.3.x_asn1_length.patch
- https://lists.strongswan.org/pipermail/announce/2009-July/000056.html
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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