========================================================================== Ubuntu Security Notice USN-3441-2 October 23, 2017
curl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: Several security issues were fixed in curl. Software Description: - curl: HTTP, HTTPS, and FTP client and client libraries Details: 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: curl 7.22.0-3ubuntu4.18 libcurl3 7.22.0-3ubuntu4.18 libcurl3-gnutls 7.22.0-3ubuntu4.18 libcurl3-nss 7.22.0-3ubuntu4.18 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3441-2 https://www.ubuntu.com/usn/usn-3441-1 CVE-2016-9586, CVE-2017-1000100, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-7407
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