USN-5894-1: curl vulnerabilities
27 February 2023
Several security issues were fixed in curl.
Releases
Packages
- curl - HTTP, HTTPS, and FTP client and client libraries
Details
Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled
TELNET connections when the -t option was used on the command line.
Uninitialized data possibly containing sensitive information could be sent
to the remote server, contrary to expectations. This issue was only fixed
in Ubuntu 14.04 ESM. (CVE-2021-22898, CVE-2021-22925)
It was discovered that curl incorrectly handled denials when using HTTP
proxies. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2022-43552)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
libcurl3-gnutls
-
7.47.0-1ubuntu2.19+esm7
Available with Ubuntu Pro
-
libcurl3-nss
-
7.47.0-1ubuntu2.19+esm7
Available with Ubuntu Pro
-
libcurl3
-
7.47.0-1ubuntu2.19+esm7
Available with Ubuntu Pro
-
curl
-
7.47.0-1ubuntu2.19+esm7
Available with Ubuntu Pro
Ubuntu 14.04
-
libcurl3-gnutls
-
7.35.0-1ubuntu2.20+esm14
Available with Ubuntu Pro
-
libcurl3-nss
-
7.35.0-1ubuntu2.20+esm14
Available with Ubuntu Pro
-
libcurl3
-
7.35.0-1ubuntu2.20+esm14
Available with Ubuntu Pro
-
curl
-
7.35.0-1ubuntu2.20+esm14
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.