Buffer overflow in Strongswan
CVE-2013-5018
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.
Vulnerability class: Buffer Overflow
EPSS: 0.030 (85.9th percentile) — read the EPSS interpretation.
Affected products
- Strongswan — versions 4.1.11, 5.0.0, 5.0.1
- Opensuse — versions 11.4, 12.2, 12.3
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)