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CVE-2013-5018

Published: Aug 28, 2013

Modified: Aug 6, 2024

PUBLISHED

Description

The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

third-party-advisory

x_refsource_SECUNIA

vdb-entry

x_refsource_BID

third-party-advisory

x_refsource_SECUNIA

http://strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.html

x_refsource_CONFIRM

openSUSE-SU-2013:1333

vendor-advisory

x_refsource_SUSE

http://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.html

x_refsource_CONFIRM

openSUSE-SU-2013:1332

vendor-advisory

x_refsource_SUSE

[Users] 20130729 [strongSwan] charon crash right after xauth+rsa client connects (strongswan-5.0.4, ubuntu 12.04)

mailing-list

x_refsource_MLIST

openSUSE-SU-2013:1372

vendor-advisory

x_refsource_SUSE

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