Red Hat Security Advisory 2013-0168-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the Xen hypervisor implementation did not perform range checking on the guest provided values in multiple hypercalls. A privileged guest user could use this flaw to trigger long loops, leading to a denial of service. It was found that when running a 32-bit binary that uses a large number of shared libraries, one of the libraries would always be loaded at a predictable address in memory. An attacker could use this flaw to bypass the Address Space Layout Randomization security feature.
b9ff959f49b534fdbdf4cd13becc4578008c34ad8428ee563ddd440250d903e5Red Hat Security Advisory 2012-1580-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the RHSA-2012:0862 update did not correctly fix the CVE-2011-4131 issue. A malicious Network File System version 4 server could return a crafted reply to a GETACL request, causing a denial of service on the client. A divide-by-zero flaw was found in the TCP Illinois congestion control algorithm implementation in the Linux kernel. If the TCP Illinois congestion control algorithm were in use, a local, unprivileged user could trigger this flaw and cause a denial of service.
957596f7bcdc61679ba3f425db589377b65fa466ef93391d0d3a1cc7386991f1Ubuntu Security Notice 1664-1 - Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
6cc269777de498820b4f3428ffca1afeccf4ef82851bcddbf4c41147c00f8664Ubuntu Security Notice 1661-1 - Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
136e60d9429e6480da1f04485fa0982af8ec226370fabce77c3e867181ac752eUbuntu Security Notice 1660-1 - Zhang Zuotao discovered a bug in the Linux kernel's handling of overlapping fragments in ipv6. A remote attacker could exploit this flaw to bypass firewalls and initial new network connections that should have been blocked by the firewall.
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