Lucene search
+L

RedHat Update for qemu-kvm RHSA-2012:1234-01

🗓️ 07 Sep 2012 00:00:00Reported by Copyright (C) 2012 Greenbone AGType 
openvas
 openvas
🔗 plugins.openvas.org👁 31 Views

The remote host is missing an update for the 'qemu-kvm' package(s) on Red Hat Enterprise Linux. A flaw in the way QEMU handled VT100 terminal escape sequences could allow a guest user to crash the qemu-kvm process on the host or escalate their privileges (CVE-2012-3515)

Related
Refs
Code
# SPDX-FileCopyrightText: 2012 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2012-September/msg00006.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870823");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2012-09-07 11:25:36 +0530 (Fri, 07 Sep 2012)");
  script_cve_id("CVE-2012-3515");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_xref(name:"RHSA", value:"2012:1234-01");
  script_name("RedHat Update for qemu-kvm RHSA-2012:1234-01");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'qemu-kvm'
  package(s) announced via the referenced advisory.");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_6");
  script_tag(name:"affected", value:"qemu-kvm on Red Hat Enterprise Linux Desktop (v. 6),
  Red Hat Enterprise Linux Server (v. 6),
  Red Hat Enterprise Linux Workstation (v. 6)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");
  script_tag(name:"insight", value:"KVM (Kernel-based Virtual Machine) is a full virtualization solution for
  Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space
  component for running virtual machines using KVM.

  A flaw was found in the way QEMU handled VT100 terminal escape sequences
  when emulating certain character devices. A guest user with privileges to
  write to a character device that is emulated on the host using a virtual
  console back-end could use this flaw to crash the qemu-kvm process on the
  host or, possibly, escalate their privileges on the host. (CVE-2012-3515)

  This flaw did not affect the default use of KVM. Affected configurations
  were:

  * When guests were started from the command line ('/usr/libexec/qemu-kvm')
  without the '-nodefaults' option, and also without specifying a
  serial or parallel device, or a virtio-console device, that specifically
  does not use a virtual console (vc) back-end. (Note that Red Hat does not
  support invoking 'qemu-kvm' from the command line without
  '-nodefaults' on  Red Hat Enterprise Linux 6.)

  * Guests that were managed via libvirt, such as when using Virtual Machine
  Manager (virt-manager), but that have a serial or parallel device, or a
  virtio-console device, that uses a virtual console back-end. By default,
  guests managed via libvirt will not use a virtual console back-end
  for such devices.

  Red Hat would like to thank the Xen project for reporting this issue.
  All users of qemu-kvm should upgrade to these updated packages, which
  resolve this issue. After installing this update, shut down all running
  virtual machines. Once all virtual machines have shut down, start them
  again for this update to take effect.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "RHENT_6")
{

  if ((res = isrpmvuln(pkg:"qemu-guest-agent", rpm:"qemu-guest-agent~0.12.1.2~2.295.el6_3.2", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"qemu-img", rpm:"qemu-img~0.12.1.2~2.295.el6_3.2", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"qemu-kvm", rpm:"qemu-kvm~0.12.1.2~2.295.el6_3.2", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"qemu-kvm-debuginfo", rpm:"qemu-kvm-debuginfo~0.12.1.2~2.295.el6_3.2", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"qemu-kvm-tools", rpm:"qemu-kvm-tools~0.12.1.2~2.295.el6_3.2", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

21 Mar 2024 00:00Current
8.2High risk
Vulners AI Score8.2
CVSS 27.2
EPSS0.00528
31