exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New
Showing 1 - 3 of 3 RSS Feed

CVE-2012-2119

Status Candidate

Overview

Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.

Related Files

Ubuntu Security Notice USN-1529-1
Posted Aug 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1529-1 - A flaw was discovered in the Linux kernel's macvtap device driver, which is used in KVM (Kernel-based Virtual Machine) to create a network bridge between host and guest. A privileged user in a guest could exploit this flaw to crash the host, if the vhost_net module is loaded with the experimental_zcopytx option enabled. An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface (which is not available to unprivileged users until granted by a root user) could exploit this flaw to crash the system or potential gain administrative privileges. Various other issues were also addressed.

tags | advisory, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2012-2119, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373, CVE-2012-3364, CVE-2012-3375, CVE-2012-3400, CVE-2012-2119, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373, CVE-2012-3364, CVE-2012-3375, CVE-2012-3400
SHA-256 | e952789bbefd461e15d40316c4fbdd6eac86480773556aab5265687085c3d735
Ubuntu Security Notice USN-1514-1
Posted Aug 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1514-1 - A flaw was discovered in the Linux kernel's macvtap device driver, which is used in KVM (Kernel-based Virtual Machine) to create a network bridge between host and guest. A privileged user in a guest could exploit this flaw to crash the host, if the vhost_net module is loaded with the experimental_zcopytx option enabled. An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface (which is not available to unprivileged users until granted by a root user) could exploit this flaw to crash the system or potential gain administrative privileges. Various other issues were also addressed.

tags | advisory, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2012-2119, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373, CVE-2012-3364, CVE-2012-3375, CVE-2012-3400, CVE-2012-2119, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373, CVE-2012-3364, CVE-2012-3375, CVE-2012-3400
SHA-256 | e1c10bba69a8a49308a988c308242a9abe24b1f355d1cf1a0609f14097f65f5c
Red Hat Security Advisory 2012-0743-01
Posted Jun 18, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0743-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A local, unprivileged user could use an integer overflow flaw in drm_mode_dirtyfb_ioctl() to cause a denial of service or escalate their privileges. A buffer overflow flaw was found in the macvtap device driver, used for creating a bridged network between the guest and the host in KVM environments. A privileged guest user in a KVM guest could use this flaw to crash the host. Note: This issue only affected hosts that have the vhost_net module loaded with the experimental_zcopytx module option enabled, and that also have macvtap configured for at least one guest.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2012-0044, CVE-2012-1179, CVE-2012-2119, CVE-2012-2121, CVE-2012-2123, CVE-2012-2136, CVE-2012-2137, CVE-2012-2372, CVE-2012-2373
SHA-256 | 2480f3d6a1b6962283dd9e04ff5f1211daab9bed3388bb442c0b82afde24b21d
Page 1 of 1
Back1Next

File Archive:

October 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    39 Files
  • 2
    Oct 2nd
    23 Files
  • 3
    Oct 3rd
    18 Files
  • 4
    Oct 4th
    20 Files
  • 5
    Oct 5th
    0 Files
  • 6
    Oct 6th
    0 Files
  • 7
    Oct 7th
    17 Files
  • 8
    Oct 8th
    66 Files
  • 9
    Oct 9th
    25 Files
  • 10
    Oct 10th
    20 Files
  • 11
    Oct 11th
    21 Files
  • 12
    Oct 12th
    0 Files
  • 13
    Oct 13th
    0 Files
  • 14
    Oct 14th
    0 Files
  • 15
    Oct 15th
    0 Files
  • 16
    Oct 16th
    0 Files
  • 17
    Oct 17th
    0 Files
  • 18
    Oct 18th
    0 Files
  • 19
    Oct 19th
    0 Files
  • 20
    Oct 20th
    0 Files
  • 21
    Oct 21st
    0 Files
  • 22
    Oct 22nd
    0 Files
  • 23
    Oct 23rd
    0 Files
  • 24
    Oct 24th
    0 Files
  • 25
    Oct 25th
    0 Files
  • 26
    Oct 26th
    0 Files
  • 27
    Oct 27th
    0 Files
  • 28
    Oct 28th
    0 Files
  • 29
    Oct 29th
    0 Files
  • 30
    Oct 30th
    0 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2024 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close