UbuntuUSN-5111-2strongSwan 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
8 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
0.061 Low
EPSS
Percentile
93.4%
Releases
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Packages
- strongswan - IPsec VPN solution
Details
USN-5111-1 fixed a vulnerability in strongSwan. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that strongSwan incorrectly handled replacing
certificates in the cache. A remote attacker could use this issue to cause
strongSwan to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2021-41991)
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 16.04 | noarch | libstrongswan | < 5.3.5-1ubuntu3.8+esm1 | UNKNOWN |
| Ubuntu | 16.04 | noarch | charon-cmd | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | charon-cmd-dbgsym | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libcharon-extra-plugins | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libcharon-extra-plugins-dbgsym | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libstrongswan | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libstrongswan-dbgsym | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libstrongswan-extra-plugins | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libstrongswan-extra-plugins-dbgsym | < 5.3.5-1ubuntu3.8 | UNKNOWN |
| Ubuntu | 16.04 | noarch | libstrongswan-standard-plugins | < 5.3.5-1ubuntu3.8 | 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
8 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
0.061 Low
EPSS
Percentile
93.4%