Several security issues were fixed in curl.
USN-3441-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 12.04 ESM.
23 October 2017
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in curl.
USN-3441-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Daniel Stenberg discovered that curl incorrectly handled large floating point output. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9586)
Even Rouault discovered that curl incorrectly handled large file names when doing TFTP transfers. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive memory contents. (CVE-2017-1000100)
Brian Carpenter and Yongji Ouyang discovered that curl incorrectly handled numerical range globbing. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive memory contents. (CVE-2017-1000101)
Max Dymond discovered that curl incorrectly handled FTP PWD responses. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service. (CVE-2017-1000254)
Brian Carpenter discovered that curl incorrectly handled IMAP FETCH response lines. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code.(CVE-2017-1000257)
Brian Carpenter discovered that curl incorrectly handled the –write-out command line option. A local attacker could possibly use this issue to obtain sensitive memory contents. (CVE-2017-7407)
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.
Vulmon