CVE-2017-9023
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.5.1-4 |
| debian | bullseye | fixed | 5.5.1-4 |
| debian | forky | fixed | 5.5.1-4 |
| debian | sid | fixed | 5.5.1-4 |
| debian | trixie | fixed | 5.5.1-4 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| strongswan | strongswan | {"endIncluding":"5.5.2"} | |
References
- http://www.debian.org/security/2017/dsa-3866
- http://www.securityfocus.com/bid/98756
- http://www.ubuntu.com/usn/USN-3301-1
- https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html
- https://www.suse.com/security/cve/CVE-2017-9023.html
- https://security-tracker.debian.org/tracker/CVE-2017-9023
CWEs
CWE-835
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.