UbuntuUSN-5651-1strongSwan vulnerability
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.6 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
52.5%
Releases
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 ESM
Packages
- strongswan - IPsec VPN solution
Details
Lahav Schlesinger discovered that strongSwan incorrectly handled certain OCSP URIs and
and CRL distribution points (CDP) in certificates. A remote attacker could
possibly use this issue to initiate IKE_SAs and send crafted certificates
that contain URIs pointing to servers under their control, which can lead
to a denial-of-service attack.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 22.04 | noarch | libstrongswan | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | charon-cmd | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | charon-cmd-dbgsym | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | charon-systemd | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | charon-systemd-dbgsym | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | libcharon-extauth-plugins | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | libcharon-extauth-plugins-dbgsym | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | libcharon-extra-plugins | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | libcharon-extra-plugins-dbgsym | < 5.9.5-2ubuntu2.1 | UNKNOWN |
| Ubuntu | 22.04 | noarch | libstrongswan-dbgsym | < 5.9.5-2ubuntu2.1 | UNKNOWN |
References
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.6 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
52.5%