Ubuntu Security Notice USN-5891-1
February 27, 2023
curl vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.10
– Ubuntu 22.04 LTS
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in curl.
Software Description:
– curl: HTTP, HTTPS, and FTP client and client libraries
Details:
Harry Sintonen discovered that curl incorrectly handled HSTS support
when multiple URLs are requested serially. A remote attacker could possibly
use this issue to cause curl to use unencrypted connections. This issue
only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2023-23914)
Harry Sintonen discovered that curl incorrectly handled HSTS support
when multiple URLs are requested in parallel. A remote attacker could
possibly use this issue to cause curl to use unencrypted connections. This
issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2023-23915)
Patrick Monnerat discovered that curl incorrectly handled memory when
processing requests with multi-header compression. A remote attacker could
possibly use this issue to cause curl to consume resources, leading to a
denial of service. (CVE-2023-23916)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.10:
curl 7.85.0-1ubuntu0.3
libcurl3-gnutls 7.85.0-1ubuntu0.3
libcurl3-nss 7.85.0-1ubuntu0.3
libcurl4 7.85.0-1ubuntu0.3
Ubuntu 22.04 LTS:
curl 7.81.0-1ubuntu1.8
libcurl3-gnutls 7.81.0-1ubuntu1.8
libcurl3-nss 7.81.0-1ubuntu1.8
libcurl4 7.81.0-1ubuntu1.8
Ubuntu 20.04 LTS:
curl 7.68.0-1ubuntu2.16
libcurl3-gnutls 7.68.0-1ubuntu2.16
libcurl3-nss 7.68.0-1ubuntu2.16
libcurl4 7.68.0-1ubuntu2.16
Ubuntu 18.04 LTS:
curl 7.58.0-2ubuntu3.23
libcurl3-gnutls 7.58.0-2ubuntu3.23
libcurl3-nss 7.58.0-2ubuntu3.23
libcurl4 7.58.0-2ubuntu3.23
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5891-1
CVE-2023-23914, CVE-2023-23915, CVE-2023-23916
Package Information:
https://launchpad.net/ubuntu/+source/curl/7.85.0-1ubuntu0.3
https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.8
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.16
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.23
