Mandrake Security Advisory MDVSA-2009:016 (xen)

# SPDX-FileCopyrightText: 2009 E-Soft Inc.
# 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 OR GPL-3.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.63203");
  script_version("2023-07-18T05:05:36+0000");
  script_tag(name:"last_modification", value:"2023-07-18 05:05:36 +0000 (Tue, 18 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-01-20 22:42:09 +0100 (Tue, 20 Jan 2009)");
  script_cve_id("CVE-2008-0928", "CVE-2008-4405", "CVE-2008-4993");
  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_name("Mandrake Security Advisory MDVSA-2009:016 (xen)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 E-Soft Inc.");
  script_family("Mandrake Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mandriva_mandrake_linux", "ssh/login/rpms", re:"ssh/login/release=MNDK_4\.0");
  script_tag(name:"insight", value:"Ian Jackson found a security issue in the QEMU block device drivers
backend that could allow a guest operating system to issue a block
device request and read or write arbitrary memory locations, which
could then lead to privilege escalation (CVE-2008-0928).

It was found that Xen allowed unprivileged DomU domains to overwrite
xenstore values which should only be changeable by the privileged
Dom0 domain.  An attacker able to control a DomU domain could possibly
use this flaw to kill arbitrary processes in Dom0 or trick a Dom0
user into accessing the text console of a different domain running
on the same host.  This update makes certain parts of xenstore tree
read-only to unprivilged DomU domains (CVE-2008-4405).

A vulnerability in the qemu-dm.debug script was found in how it
created a temporary file in /tmp.  A local attacker in Dom0 could
potentially use this flaw to overwrite arbitrary files via a symlink
attack (CVE-2008-4993).  Since this script is not used in production,
it has been removed from this update package.

The updated packages have been patched to prevent these issues.

Affected: Corporate 4.0");
  script_tag(name:"solution", value:"To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.");

  script_xref(name:"URL", value:"https://secure1.securityspace.com/smysecure/catid.html?in=MDVSA-2009:016");
  script_tag(name:"summary", value:"The remote host is missing an update to xen
announced via advisory MDVSA-2009:016.");
  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");

res = "";
report = "";
if ((res = isrpmvuln(pkg:"xen", rpm:"xen~3.0.1~3.2.20060mlcs4", rls:"MNDK_4.0")) != NULL) {
    report += res;
}

if (report != "") {
    security_message(data:report);
} else if (__pkg_match) {
    exit(99);
}