Vulnerability in Ipsec-Tools
CVE-2016-10396
The racoon daemon in IPsec-Tools 0.8.2 contains a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Ipsec-Tools — versions 0.8.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cvsweb.netbsd.org/bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp_frag… (Mailing List, Third Party Advisory)
- gnats.netbsd.org/cgi-bin/query-pr-single.pl (Mailing List, Third Party Advisory)
- cvsweb.netbsd.org/bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp_frag… (Third Party Advisory)
Frequently asked questions
- What is CVE-2016-10396?
- CVE-2016-10396 is a high-severity vulnerability in Ipsec-Tools, classified under Inefficient Algorithmic Complexity. CVSS score: 7.5/10. Published 2017-07-06.
- How severe is CVE-2016-10396?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-10396 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.