Frediano Ziglio of Red Hat discovered a race condition flaw in spice’s worker_update_monitors_config() function, leading to a heap-based memory corruption. A malicious user in a guest can take advantage of this flaw to cause a denial of service (QEMU process crash) or, potentially execute arbitrary code on the host with the privileges of the hosting QEMU process.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-3354. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(85851);
script_version("2.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-3247");
script_xref(name:"DSA", value:"3354");
script_name(english:"Debian DSA-3354-1 : spice - security update");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Frediano Ziglio of Red Hat discovered a race condition flaw in spice's
worker_update_monitors_config() function, leading to a heap-based
memory corruption. A malicious user in a guest can take advantage of
this flaw to cause a denial of service (QEMU process crash) or,
potentially execute arbitrary code on the host with the privileges of
the hosting QEMU process."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=797976"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/spice"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2015/dsa-3354"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the spice packages.
For the stable distribution (jessie), this problem has been fixed in
version 0.12.5-1+deb8u1."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:spice");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2015/09/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/09/09");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"libspice-server-dev", reference:"0.12.5-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libspice-server1", reference:"0.12.5-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libspice-server1-dbg", reference:"0.12.5-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"spice-client", reference:"0.12.5-1+deb8u1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | spice | p-cpe:/a:debian:debian_linux:spice |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |