USN-5412-1: curl vulnerabilities
11 May 2022
Several security issues were fixed in curl.
Releases
Packages
- 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
-
libcurl3-gnutls
-
7.81.0-1ubuntu1.2
-
libcurl3-nss
-
7.81.0-1ubuntu1.2
-
libcurl4
-
7.81.0-1ubuntu1.2
-
curl
-
7.81.0-1ubuntu1.2
Ubuntu 21.10
-
libcurl3-gnutls
-
7.74.0-1.3ubuntu2.2
-
libcurl3-nss
-
7.74.0-1.3ubuntu2.2
-
libcurl4
-
7.74.0-1.3ubuntu2.2
-
curl
-
7.74.0-1.3ubuntu2.2
Ubuntu 20.04
-
libcurl3-gnutls
-
7.68.0-1ubuntu2.11
-
libcurl3-nss
-
7.68.0-1ubuntu2.11
-
libcurl4
-
7.68.0-1ubuntu2.11
-
curl
-
7.68.0-1ubuntu2.11
Ubuntu 18.04
-
libcurl3-gnutls
-
7.58.0-2ubuntu3.18
-
libcurl3-nss
-
7.58.0-2ubuntu3.18
-
libcurl4
-
7.58.0-2ubuntu3.18
-
curl
-
7.58.0-2ubuntu3.18
In general, a standard system update will make all the necessary changes.