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Files Date: 2012-06-01 to 2012-06-02

Ubuntu Security Notice USN-1460-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1460-1 - 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. Steve Grubb reported a flaw with Linux fscaps (file system base capabilities) when used to increase the permissions of a process. For application on which fscaps are in use a local attacker can disable address space randomization to make attacking the process with raised privileges easier. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-1601, CVE-2012-2123, CVE-2012-1601, CVE-2012-2123
SHA-256 | 5eed4e806cfbd1046a574babd6b104c4b5b1de172cca928a8a7b6e71e6fdff02
Ubuntu Security Notice USN-1459-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1459-1 - 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. Steve Grubb reported a flaw with Linux fscaps (file system base capabilities) when used to increase the permissions of a process. For application on which fscaps are in use a local attacker can disable address space randomization to make attacking the process with raised privileges easier. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-1601, CVE-2012-2123, CVE-2012-1601, CVE-2012-2123
SHA-256 | f8953400254cf2783ba9b51d78b1cd00882b5fa235d26b059d3de43dfc27c4ad
Ubuntu Security Notice USN-1458-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1458-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. A flaw was discovered in the Linux kernel's cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4086, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100, CVE-2011-4086, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100
SHA-256 | 351dbb8a5b12503c42271509730cb86bad79aba2f4a02c0d7863862d1499e767
Ubuntu Security Notice USN-1456-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1456-1 - Sebastian Pohle discovered that Nut did not properly validate its input when receiving data over the network. If upsd was configured to allow connections over the network, a remote attacker could exploit this to cause a denial of service (application crash).

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2012-2944
SHA-256 | 91052e6c1a5d4aac3c32ed0275f0fd401d0df77fe0140283ea7d0f16a3827acc
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
SHA-256 | 649c25f1d00b47ba22234b57faaf20821809ce2e942e784a0f40d1efe1ac41dc
Debian Security Advisory 2483-1
Posted Jun 1, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2483-1 - An authentication bypass issue was discovered by the Codenomicon CROSS project in strongSwan, an IPsec-based VPN solution. When using RSA-based setups, a missing check in the gmp plugin could allow an attacker presenting a forged signature to successfully authenticate against a strongSwan responder.

tags | advisory
systems | linux, debian
advisories | CVE-2012-2388
SHA-256 | 7609f91a664792688a1457f9e5c23da2922dfbaaf34996f4ab7c713b94406d26
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