CVE-2009-2661
6.4 Medium
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.023 Low
EPSS
Percentile
89.6%
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.
References
download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.3.x_asn1_length.patch
download.strongswan.org/patches/07_asn1_length_patch/strongswan-4.x.x_asn1_length.patch
lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
secunia.com/advisories/36922
up2date.astaro.com/2009/08/up2date_7505_released.html
www.debian.org/security/2009/dsa-1899
www.openwall.com/lists/oss-security/2009/07/27/1
www.vupen.com/english/advisories/2009/2247
lists.strongswan.org/pipermail/announce/2009-July/000056.html
Related
6.4 Medium
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.023 Low
EPSS
Percentile
89.6%