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CVE-2012-2133

Status Candidate

Overview

Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.

Related Files

Red Hat Security Advisory 2013-0741-01
Posted Apr 16, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0741-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A race condition was found in the way the Linux kernel's ptrace implementation handled PTRACE_SETREGS requests when the debuggee was woken due to a SIGKILL signal instead of being stopped. A local, unprivileged user could use this flaw to escalate their privileges.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2012-2133, CVE-2013-0871
MD5 | 8218e741c03aab3ebe1339676e240369
Red Hat Security Advisory 2012-1491-01
Posted Dec 4, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1491-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way Netlink messages without SCM_CREDENTIALS data set were handled. When not explicitly set, the data was sent but with all values set to 0, including the process ID and user ID, causing the Netlink message to appear as if it were sent with root privileges. A local, unprivileged user could use this flaw to send spoofed Netlink messages to an application, possibly resulting in the application performing privileged operations if it relied on SCM_CREDENTIALS data for the authentication of Netlink messages.

tags | advisory, kernel, local, root, spoof
systems | linux, redhat
advisories | CVE-2012-0957, CVE-2012-2133, CVE-2012-3400, CVE-2012-3430, CVE-2012-3511, CVE-2012-3520, CVE-2012-4508, CVE-2012-4565
MD5 | aece63615129fd789a2fd3c42520e29c
Red Hat Security Advisory 2012-1426-01
Posted Nov 7, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1426-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A use-after-free flaw was found in the Linux kernel's memory management subsystem in the way quota handling for huge pages was performed. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges. A use-after-free flaw was found in the madvise() system call implementation in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges.

tags | advisory, denial of service, kernel, local
systems | linux, redhat
advisories | CVE-2012-1568, CVE-2012-2133, CVE-2012-3400, CVE-2012-3511
MD5 | c439c841b1e67c942b56bf7778ebeffa
Ubuntu Security Notice USN-1476-1
Posted Jun 16, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1476-1 - Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384, CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384
MD5 | 2237ceeb150d9e69b8ce5bc1021f91cb
Ubuntu Security Notice USN-1474-1
Posted Jun 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1474-1 - A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384
MD5 | 01a188c43a3a9ccc1f5b4dfae42139b1
Ubuntu Security Notice USN-1473-1
Posted Jun 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1473-1 - A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384
MD5 | baf239a678b78f36eacb41175edec3cb
Ubuntu Security Notice USN-1472-1
Posted Jun 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1472-1 - Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384, CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384
MD5 | b93d936fb5d9173afcbdfc59670eabbe
Ubuntu Security Notice USN-1470-1
Posted Jun 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1470-1 - Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4131, CVE-2012-1601, CVE-2012-2121, CVE-2012-2123, CVE-2012-2133, CVE-2011-4131, CVE-2012-1601, CVE-2012-2121, CVE-2012-2123, CVE-2012-2133
MD5 | 7897509f7f76588b2fa3d4bfa1ba9f84
Ubuntu Security Notice USN-1469-1
Posted Jun 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1469-1 - Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-2133
MD5 | 92ba4091230ab91fa5e6dc728fb768ba
Ubuntu Security Notice USN-1471-1
Posted Jun 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1471-1 - Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384, CVE-2011-4131, CVE-2012-2121, CVE-2012-2133, CVE-2012-2313, CVE-2012-2319, CVE-2012-2383, CVE-2012-2384
MD5 | c07de6af006f56efb7680b3a1ed50767
Ubuntu Security Notice USN-1468-1
Posted Jun 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1468-1 - Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-2133
MD5 | e5f070079a132a1cf22edf270784fc5a
Ubuntu Security Notice USN-1457-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1457-1 - Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4131, CVE-2012-1601, CVE-2012-2121, CVE-2012-2123, CVE-2012-2133, CVE-2011-4131, CVE-2012-1601, CVE-2012-2121, CVE-2012-2123, CVE-2012-2133
MD5 | 739b4e4b83c3f3ceac08c7f1f0eac034
Debian Security Advisory 2469-1
Posted May 11, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2469-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2011-4086, CVE-2012-0879, CVE-2012-1601, CVE-2012-2123, CVE-2012-2133
MD5 | 3f1dcfb71fe565dd57795656e6ce3a4e
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