USN-3993-2: curl vulnerability
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
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
Source: USN-3993-2: curl vulnerability
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