USN-4129-1: curl vulnerabilities

11 September 2019

curl vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in curl.

Software Description

  • curl - HTTP, HTTPS, and FTP client and client libraries

Details

Thomas Vegas discovered that curl incorrectly handled memory when using Kerberos over FTP. A remote attacker could use this issue to crash curl, resulting in a denial of service. (CVE-2019-5481)

Thomas Vegas discovered that curl incorrectly handled memory during TFTP transfers. A remote attacker could use this issue to crash curl, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-5482)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04
curl - 7.64.0-2ubuntu1.2
libcurl3-gnutls - 7.64.0-2ubuntu1.2
libcurl3-nss - 7.64.0-2ubuntu1.2
libcurl4 - 7.64.0-2ubuntu1.2
Ubuntu 18.04 LTS
curl - 7.58.0-2ubuntu3.8
libcurl3-gnutls - 7.58.0-2ubuntu3.8
libcurl3-nss - 7.58.0-2ubuntu3.8
libcurl4 - 7.58.0-2ubuntu3.8
Ubuntu 16.04 LTS
curl - 7.47.0-1ubuntu2.14
libcurl3 - 7.47.0-1ubuntu2.14
libcurl3-gnutls - 7.47.0-1ubuntu2.14
libcurl3-nss - 7.47.0-1ubuntu2.14

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.

References