Cisco Security Advisory – A vulnerability in the processing of Network Time Protocol (NTP) packets by Cisco IOS could allow an unauthenticated, remote attacker to cause an interface wedge and an eventual denial of service (DoS) condition on the affected device. The vulnerability is due to insufficient checks on clearing the invalid NTP packets from the interface queue. An attacker could exploit this vulnerability by sending a number of crafted NTP packets to be processed by an affected device. An exploit could allow the attacker to cause an interface wedge and an eventual denial of service (DoS) condition on the affected device. Cisco released software updates that address this vulnerability. There are no workarounds that address this vulnerability; however, there is a mitigation for this vulnerability.

Ubuntu Security Notice 3041-1 – Multiple security issues were discovered in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to read uninitialized memory, cause a denial of service or execute arbitrary code. It was discovered that the PPAPI implementation does not validate the origin of IPC messages to the plugin broker process. A remote attacker could potentially exploit this to bypass sandbox protection mechanisms. Various other issues were also addressed.

Red Hat Security Advisory 2016-1573-01 – Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Security Fix: It was found that the fix for CVE-2016-4051 released via RHSA-2016:1138 did not properly prevent the stack overflow in the munge_other_line() function. A remote attacker could send specially crafted data to the Squid proxy, which would exploit the cachemgr CGI utility, possibly triggering execution of arbitrary code.

Ubuntu Security Notice 3046-1 – Yves Younan and Richard Johnson discovered that LibreOffice incorrectly handled presentation files. If a user were tricked into opening a specially crafted presentation file, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code.

Debian Linux Security Advisory 3641-1 – Several vulnerabilities have been discovered in OpenJDK, an implementation of the Oracle Java platform, resulting in breakouts of the Java sandbox or denial of service.

Ubuntu Security Notice 3047-1 – Li Qiang discovered that QEMU incorrectly handled 53C9X Fast SCSI controller emulation. A privileged attacker inside the guest could use th is issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor Various other issues were also addressed.

Ubuntu Security Notice 3044-1 – Gustavo Grieco discovered an out-of-bounds read during XML parsing in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or obtain sensitive information. Toni Huttunen discovered that once a favicon is requested from a site, the remote server can keep the network connection open even after the page is closed. A remote attacker could potentially exploit this to track users, resulting in information disclosure. Various other issues were also addressed.