USN-4784-1

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USN-4784-1

Summary: xerces-c vulnerabilities

Details: It was discovered that Xerces-C++ XML Parser mishandles certain kinds of external DTD references, resulting in a user-after-free. An attacker could use this vulnerability to cause a denial of service (crash) or possibly execute arbitrary code. This issue affected only Ubuntu 16.04 ESM. (CVE-2016-2099) It was discovered that Xerces-C++ XML Parser fails to successfully parse a DTD that is too deeply nested. An unauthenticated attacker could use this vulnerability to cause a denial of service. This issue affected only Ubuntu 16.04 ESM. (CVE-2016-4463) It was discovered that Xerces-C++ mishandles certain kinds of external DTD references, resulting in dereference of a NULL pointer. An attacker could use this vulnerability to cause a denial of service. (CVE-2017-12627)

References: https://ubuntu.com/security/notices/USN-4784-1, https://ubuntu.com/security/CVE-2016-2099, https://ubuntu.com/security/CVE-2016-4463, https://ubuntu.com/security/CVE-2017-12627