CVE-2009-1957 describes a denial-of-service vulnerability in strongSWAN versions prior to 4.3.1, specifically within the charon daemon. An unauthenticated remote attacker can trigger a NULL pointer dereference and crash by sending a malformed IKE_SA_INIT request followed by a CREATE_CHILD_SA request, leading to system unavailability. The vulnerability has a CVSS score of 5.0, indicating a medium severity. It requires low attack complexity and no authentication, but its impact is limited to availability (denial of service). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.3.0CPE matchmatch criteria | cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* | ||
2.0.0CPE matchmatch criteria | cpe:2.3:a:strongswan:strongswan:2.0.0:*:*:*:*:*:*:* | ||
2.0.1CPE matchmatch criteria | cpe:2.3:a:strongswan:strongswan:2.0.1:*:*:*:*:*:*:* | ||
2.0.2CPE matchmatch criteria | cpe:2.3:a:strongswan:strongswan:2.0.2:*:*:*:*:*:*:* | ||
2.1.0CPE matchmatch criteria | cpe:2.3:a:strongswan:strongswan:2.1.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.