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
7.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.1%
Medium
Canonical Ubuntu
It was discovered that the python-cryptography Cipher.update_into function would incorrectly accept objects with immutable buffers. This would result in corrupted output, contrary to expectations. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-23931) It was dicovered that python-cryptography incorrectly handled loading certain PKCS7 certificates. A remote attacker could possibly use this issue to cause python-cryptography to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10. (CVE-2023-49083) Update Instructions: Run sudo pro fix USN-6539-1
to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: python3-cryptography – 3.4.8-1ubuntu2.1 python-cryptography-doc – 3.4.8-1ubuntu2.1 No subscription required
CVEs contained in this USN include: CVE-2023-23931, CVE-2023-49083.
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:
2024-04-04: Initial vulnerability report published.
CPE | Name | Operator | Version |
---|---|---|---|
jammy stemcells | lt | 1.327 | |
cf deployment | lt | 1.327 |
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
7.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.1%