Several security issues were fixed in curl.
USN-3598-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 12.04 ESM.
24 May 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in curl.
USN-3598-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Phan Thanh discovered that curl incorrectly handled certain FTP paths. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2018-1000120)
Dario Weisser discovered that curl incorrectly handled certain LDAP URLs. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-1000121)
Max Dymond discovered that curl incorrectly handled certain RTSP data. An attacker could possibly use this to cause a denial of service or even to get access to sensitive data. (CVE-2018-1000122)
Max Dymond discovered that curl incorrectly handled certain RTSP responses. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2018-1000301)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.