=========================================================================Ubuntu Security Notice USN-3993-2
May 22, 2019
curl vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary:
curl could be made to crash if it received a specially crafted data.
Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries
Details:
USN-3993-1 fixed a vulnerability in curl. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that curl incorrectly handled memory when receiving
data from a TFTP server. A remote attacker could use this issue to
cause curl to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2019-5436)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
curl 7.35.0-1ubuntu2.20+esm2
libcurl3 7.35.0-1ubuntu2.20+esm2
libcurl3-gnutls 7.35.0-1ubuntu2.20+esm2
libcurl3-nss 7.35.0-1ubuntu2.20+esm2
Ubuntu 12.04 ESM:
curl 7.22.0-3ubuntu4.26
libcurl3 7.22.0-3ubuntu4.26
libcurl3-gnutls 7.22.0-3ubuntu4.26
libcurl3-nss 7.22.0-3ubuntu4.26
In general, a standard system update will make all the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-3993-2
https://ubuntu.com/security/notices/USN-3993-1
CVE-2019-5436
