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CVE-2015-7885

Status Candidate

Overview

The dgnc_mgmt_ioctl function in drivers/staging/dgnc/dgnc_mgmt.c in the Linux kernel through 4.3.3 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel memory via a crafted application.

Related Files

Ubuntu Security Notice USN-2843-3
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2843-3 - =E9=83=AD=E6=B0=B8=E5=88=9A discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7872, CVE-2015-7884, CVE-2015-7885
SHA-256 | 49334a6b730ea953bb24db7899076e4caa9a090dbe9937e4c72b50efb8cce3a4
Ubuntu Security Notice USN-2843-2
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2843-2 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7872, CVE-2015-7884, CVE-2015-7885, CVE-2015-8104
SHA-256 | c5e55d2c73f862fc096ea1440ff05f9e135387c9eb19edd0e68e6a85dc021481
Ubuntu Security Notice USN-2844-1
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2844-1 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7885, CVE-2015-8104
SHA-256 | b4cd0bc253990e55a6ecc2c204566cda6ed9cd5f6cf7e24e01d7c2684add877f
Ubuntu Security Notice USN-2843-1
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2843-1 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7872, CVE-2015-7884, CVE-2015-7885, CVE-2015-8104
SHA-256 | f479df664dd8312e1d62280d98193f75f0d711e3ff7b1a9290dd88a9b27a19bc
Ubuntu Security Notice USN-2842-2
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2842-2 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7884, CVE-2015-7885, CVE-2015-8104
SHA-256 | a5afc6600211fee4092359c7676a6587ef99dbb6b0927cfbf42276bdf656c3e8
Ubuntu Security Notice USN-2842-1
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2842-1 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7884, CVE-2015-7885, CVE-2015-8104
SHA-256 | f15c2f33f4786bc4f7ee04869838e57eaef6dac30e29cec3994dd7170aca39f8
Ubuntu Security Notice USN-2841-2
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2841-2 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7885, CVE-2015-8104
SHA-256 | aab7b8a18a2eeea06d3bd68e70d7384b8208fa178992a4e636bcea7bb44436e4
Ubuntu Security Notice USN-2841-1
Posted Dec 17, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2841-1 - Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. It was discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-7799, CVE-2015-7885, CVE-2015-8104
SHA-256 | feea045271b1b06eb4f378183ee7bc3c161927c90e23d465be242578c3050baa
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