CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
71.9%
Medium
Canonical Ubuntu
Harry Sintonen discovered that curl incorrectly handled certain TELNET connection options. Due to lack of proper input scrubbing, curl could pass on user name and telnet options to the server as provided, contrary to expectations. (CVE-2023-27533) Harry Sintonen discovered that curl incorrectly handled special tilde characters when used with SFTP paths. A remote attacker could possibly use this issue to circumvent filtering. (CVE-2023-27534) Harry Sintonen discovered that curl incorrectly reused certain FTP connections. This could lead to the wrong credentials being reused, contrary to expectations. (CVE-2023-27535) Harry Sintonen discovered that curl incorrectly reused connections when the GSS delegation option had been changed. This could lead to the option being reused, contrary to expectations. (CVE-2023-27536) Harry Sintonen discovered that curl incorrectly reused certain SSH connections. This could lead to the wrong credentials being reused, contrary to expectations. (CVE-2023-27538) Update Instructions: Run sudo pro fix USN-5964-1
to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libcurl4-gnutls-dev – 7.58.0-2ubuntu3.24 libcurl4-openssl-dev – 7.58.0-2ubuntu3.24 libcurl3-gnutls – 7.58.0-2ubuntu3.24 libcurl4-doc – 7.58.0-2ubuntu3.24 libcurl3-nss – 7.58.0-2ubuntu3.24 libcurl4-nss-dev – 7.58.0-2ubuntu3.24 libcurl4 – 7.58.0-2ubuntu3.24 curl – 7.58.0-2ubuntu3.24 No subscription required
CVEs contained in this USN include: CVE-2023-27533, CVE-2023-27534, CVE-2023-27535, CVE-2023-27536, CVE-2023-27538.
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:
2023-04-29: Initial vulnerability report published.
Vendor | Product | Version | CPE |
---|---|---|---|
cloudfoundry | bionic_stemcells | * | cpe:2.3:a:cloudfoundry:bionic_stemcells:*:*:*:*:*:*:*:* |
cloudfoundry | cflinuxfs3 | * | cpe:2.3:a:cloudfoundry:cflinuxfs3:*:*:*:*:*:*:*:* |
cloudfoundry | cflinuxfs4 | * | cpe:2.3:a:cloudfoundry:cflinuxfs4:*:*:*:*:*:*:*:* |
cloudfoundry | jammy_stemcells | * | cpe:2.3:a:cloudfoundry:jammy_stemcells:*:*:*:*:*:*:*:* |
cloudfoundry | cf-deployment | * | cpe:2.3:a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:* |