USN-4308-2

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USN-4308-2

Summary: twisted vulnerabilities

Details: USN-4308-1 fixed several vulnerabilities in Twisted. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: it was discovered that Twisted incorrectly validated or sanitized certain URIs or HTTP methods. A remote attacker could use this issue to inject invalid characters and possibly perform header injection attacks. (CVE-2019-12387) It was discovered that Twisted incorrectly verified XMPP TLS certificates. A remote attacker could possibly use this issue to perform a machine-in-the-middle attack and obtain sensitive information. (CVE-2019-12855) Jake Miller and ZeddYu Lu discovered that Twisted incorrectly handled certain content-length headers. A remote attacker could possibly use this issue to perform HTTP request splitting attacks. (CVE-2020-10108, CVE-2020-10109)

References: https://ubuntu.com/security/notices/USN-4308-2, https://ubuntu.com/security/CVE-2019-12387, https://ubuntu.com/security/CVE-2019-12855, https://ubuntu.com/security/CVE-2020-10108, https://ubuntu.com/security/CVE-2020-10109