A curl security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 21.10, and 22.04 LTS.
==========================================================================
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:
https://ubuntu.com/security/notices/USN-5412-1
CVE-2022-27780, CVE-2022-27781, CVE-2022-27782
Package Information:
https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.2
https://launchpad.net/ubuntu/+source/curl/7.74.0-1.3ubuntu2.2
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.11
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.18
--------------Zj0wkmVybKpl1eVJ4RRFh2zT--
--------------VzN0pDFUoZOQMSaaZyLC1Vt3
