CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS
Percentile
57.2%
Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service.
CVE-2015-5307 Ben Serebrin from Google discovered a guest to host denial of service flaw affecting the KVM hypervisor. A malicious guest can trigger an infinite stream of ‘alignment check’ (#AC) exceptions causing the processor microcode to enter an infinite loop where the core never receives another interrupt. This leads to a panic of the host kernel.
CVE-2015-7833 Sergej Schumilo, Hendrik Schwartke and Ralf Spenneberg discovered a flaw in the processing of certain USB device descriptors in the usbvision driver. An attacker with physical access to the system can use this flaw to crash the system.
CVE-2015-7872 Dmitry Vyukov discovered a vulnerability in the keyrings garbage collector allowing a local user to trigger a kernel panic.
CVE-2015-7990 It was discovered that the fix for CVE-2015-6937 was incomplete. A race condition when sending a message on unbound socket can still cause a NULL pointer dereference. A remote attacker might be able to cause a denial of service (crash) by sending a crafted packet.
#%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-3396. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(86832);
script_version("2.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2015-5307", "CVE-2015-7833", "CVE-2015-7872", "CVE-2015-7990");
script_xref(name:"DSA", value:"3396");
script_name(english:"Debian DSA-3396-1 : linux - 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:
"Several vulnerabilities have been discovered in the Linux kernel that
may lead to a denial of service.
- CVE-2015-5307
Ben Serebrin from Google discovered a guest to host
denial of service flaw affecting the KVM hypervisor. A
malicious guest can trigger an infinite stream of
'alignment check' (#AC) exceptions causing the processor
microcode to enter an infinite loop where the core never
receives another interrupt. This leads to a panic of the
host kernel.
- CVE-2015-7833
Sergej Schumilo, Hendrik Schwartke and Ralf Spenneberg
discovered a flaw in the processing of certain USB
device descriptors in the usbvision driver. An attacker
with physical access to the system can use this flaw to
crash the system.
- CVE-2015-7872
Dmitry Vyukov discovered a vulnerability in the keyrings
garbage collector allowing a local user to trigger a
kernel panic.
- CVE-2015-7990
It was discovered that the fix for CVE-2015-6937 was
incomplete. A race condition when sending a message on
unbound socket can still cause a NULL pointer
dereference. A remote attacker might be able to cause a
denial of service (crash) by sending a crafted packet."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-5307"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-7833"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-7872"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-7990"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2015-6937"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/linux"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2015/dsa-3396"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the linux packages.
For the oldstable distribution (wheezy), these problems have been
fixed in version 3.2.68-1+deb7u6.
For the stable distribution (jessie), these problems have been fixed
in version 3.16.7-ckt11-1+deb8u6."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/19");
script_set_attribute(attribute:"patch_publication_date", value:"2015/11/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/11");
script_set_attribute(attribute:"generated_plugin", value:"current");
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:"7.0", prefix:"linux", reference:"3.2.68-1+deb7u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.8-arm", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.8-x86", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.9-x86", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-doc-3.16", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-586", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-686-pae", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-amd64", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-armel", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-armhf", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-i386", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-armmp", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-armmp-lpae", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-common", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-ixp4xx", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-kirkwood", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-orion5x", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-versatile", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-586", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-686-pae", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-686-pae-dbg", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-amd64-dbg", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-armmp", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-armmp-lpae", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-ixp4xx", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-kirkwood", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-orion5x", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-versatile", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-libc-dev", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-manual-3.16", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-source-3.16", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"linux-support-3.16.0-9", reference:"3.16.7-ckt11-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"xen-linux-system-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u6")) 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");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7833
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7872
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7990
packages.debian.org/source/jessie/linux
security-tracker.debian.org/tracker/CVE-2015-5307
security-tracker.debian.org/tracker/CVE-2015-6937
security-tracker.debian.org/tracker/CVE-2015-7833
security-tracker.debian.org/tracker/CVE-2015-7872
security-tracker.debian.org/tracker/CVE-2015-7990
www.debian.org/security/2015/dsa-3396
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS
Percentile
57.2%