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
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
51.4%
Medium
Canonical Ubuntu
It was discovered that Bind incorrectly handled certain control channel messages. A remote attacker with access to the control channel could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2023-3341) Robert Story discovered that Bind incorrectly handled certain DNS-over-TLS queries. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-4236) Update Instructions: Run sudo pro fix USN-6390-1
to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: dnsutils – 1:9.18.12-0ubuntu0.22.04.3 bind9-libs – 1:9.18.12-0ubuntu0.22.04.3 bind9utils – 1:9.18.12-0ubuntu0.22.04.3 bind9-dev – 1:9.18.12-0ubuntu0.22.04.3 bind9-doc – 1:9.18.12-0ubuntu0.22.04.3 bind9-utils – 1:9.18.12-0ubuntu0.22.04.3 bind9 – 1:9.18.12-0ubuntu0.22.04.3 bind9-dnsutils – 1:9.18.12-0ubuntu0.22.04.3 bind9-host – 1:9.18.12-0ubuntu0.22.04.3 No subscription required
CVEs contained in this USN include: CVE-2023-3341, CVE-2023-4236.
Severity is medium unless otherwise noted.
Users of affected products are strongly encouraged to follow the mitigations below.
The Cloud Foundry project recommends upgrading the following releases:
2023-10-05: Initial vulnerability report published.
CPE | Name | Operator | Version |
---|---|---|---|
cflinuxfs4 | lt | 1.39.0 | |
jammy stemcells | lt | 1.250 | |
cf deployment | lt | 1.250 |
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
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
51.4%