[USN-5412-1] curl vulnerabilities


========================================================================== Ubuntu Security Notice USN-5412-1 May 11, 2022
curl vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.04 LTS – Ubuntu 21.10 – 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:
Axel Chong discovered that curl incorrectly handled percent-encoded URL separators. A remote attacker could possibly use this issue to trick curl into using the wrong URL and bypass certain checks or filters. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-27780)
Florian Kohnhuser discovered that curl incorrectly handled returning a TLS server’s certificate chain details. A remote attacker could possibly use this issue to cause curl to stop responding, resulting in a denial of service. (CVE-2022-27781)
Harry Sintonen discovered that curl incorrectly reused a previous connection when certain options had been changed, contrary to expectations. (CVE-2022-27782)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04 LTS: curl 7.81.0-1ubuntu1.2 libcurl3-gnutls 7.81.0-1ubuntu1.2 libcurl3-nss 7.81.0-1ubuntu1.2 libcurl4 7.81.0-1ubuntu1.2
Ubuntu 21.10: curl 7.74.0-1.3ubuntu2.2 libcurl3-gnutls 7.74.0-1.3ubuntu2.2 libcurl3-nss 7.74.0-1.3ubuntu2.2 libcurl4 7.74.0-1.3ubuntu2.2
Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.11 libcurl3-gnutls 7.68.0-1ubuntu2.11 libcurl3-nss 7.68.0-1ubuntu2.11 libcurl4 7.68.0-1ubuntu2.11
Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.18 libcurl3-gnutls 7.58.0-2ubuntu3.18 libcurl3-nss 7.58.0-2ubuntu3.18 libcurl4 7.58.0-2ubuntu3.18
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5412-1 CVE-2022-27780, CVE-2022-27781, CVE-2022-27782
Package Information: launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.2 launchpad.net/ubuntu/+source/curl/7.74.0-1.3ubuntu2.2 launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.11 launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.18