CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
81.1%
Security Fix(es) :
It was discovered that a remote attacker could leverage the generation of IPv6 atomic fragments to trigger the use of fragmentation in an arbitrary IPv6 flow (in scenarios in which actual fragmentation of packets is not needed) and could subsequently perform any type of a fragmentation- based attack against legacy IPv6 nodes that do not implement RFC6946. (CVE-2016-10142, Moderate)
A flaw was discovered in the way the Linux kernel dealt with paging structures. When the kernel invalidated a paging structure that was not in use locally, it could, in principle, race against another CPU that is switching to a process that uses the paging structure in question.
A local user could use a thread running with a stale cached virtual->physical translation to potentially escalate their privileges if the translation in question were writable and the physical page got reused for something critical (for example, a page table).
(CVE-2016-2069, Moderate)
A race condition flaw was found in the ioctl_send_fib() function in the Linux kernel’s aacraid implementation. A local attacker could use this flaw to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value. (CVE-2016-6480, Moderate)
It was found that when the gcc stack protector was enabled, reading the /proc/keys file could cause a panic in the Linux kernel due to stack corruption. This happened because an incorrect buffer size was used to hold a 64-bit timeout value rendered as weeks.
(CVE-2016-7042, Moderate)
It was found that when file permissions were modified via chmod and the user modifying them was not in the owning group or capable of CAP_FSETID, the setgid bit would be cleared. Setting a POSIX ACL via setxattr sets the file permissions as well as the new ACL, but doesn’t clear the setgid bit in a similar way. This could allow a local user to gain group privileges via certain setgid applications. (CVE-2016-7097, Moderate)
A flaw was found in the Linux networking subsystem where a local attacker with CAP_NET_ADMIN capabilities could cause an out-of-bounds memory access by creating a smaller-than-expected ICMP header and sending to its destination via sendto(). (CVE-2016-8399, Moderate)
It was found that the blk_rq_map_user_iov() function in the Linux kernel’s block device implementation did not properly restrict the type of iterator, which could allow a local attacker to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging write access to a /dev/sg device. (CVE-2016-9576, CVE-2016-10088, Moderate)
A flaw was found in the USB-MIDI Linux kernel driver: a double-free error could be triggered for the ‘umidi’ object. An attacker with physical access to the system could use this flaw to escalate their privileges.
(CVE-2016-2384, Low)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(99218);
script_version("3.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2016-10088", "CVE-2016-10142", "CVE-2016-2069", "CVE-2016-2384", "CVE-2016-6480", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8399", "CVE-2016-9576");
script_name(english:"Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20170321)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Security Fix(es) :
- It was discovered that a remote attacker could leverage
the generation of IPv6 atomic fragments to trigger the
use of fragmentation in an arbitrary IPv6 flow (in
scenarios in which actual fragmentation of packets is
not needed) and could subsequently perform any type of a
fragmentation- based attack against legacy IPv6 nodes
that do not implement RFC6946. (CVE-2016-10142,
Moderate)
- A flaw was discovered in the way the Linux kernel dealt
with paging structures. When the kernel invalidated a
paging structure that was not in use locally, it could,
in principle, race against another CPU that is switching
to a process that uses the paging structure in question.
A local user could use a thread running with a stale
cached virtual->physical translation to potentially
escalate their privileges if the translation in question
were writable and the physical page got reused for
something critical (for example, a page table).
(CVE-2016-2069, Moderate)
- A race condition flaw was found in the ioctl_send_fib()
function in the Linux kernel's aacraid implementation. A
local attacker could use this flaw to cause a denial of
service (out-of-bounds access or system crash) by
changing a certain size value. (CVE-2016-6480, Moderate)
- It was found that when the gcc stack protector was
enabled, reading the /proc/keys file could cause a panic
in the Linux kernel due to stack corruption. This
happened because an incorrect buffer size was used to
hold a 64-bit timeout value rendered as weeks.
(CVE-2016-7042, Moderate)
- It was found that when file permissions were modified
via chmod and the user modifying them was not in the
owning group or capable of CAP_FSETID, the setgid bit
would be cleared. Setting a POSIX ACL via setxattr sets
the file permissions as well as the new ACL, but doesn't
clear the setgid bit in a similar way. This could allow
a local user to gain group privileges via certain setgid
applications. (CVE-2016-7097, Moderate)
- A flaw was found in the Linux networking subsystem where
a local attacker with CAP_NET_ADMIN capabilities could
cause an out-of-bounds memory access by creating a
smaller-than-expected ICMP header and sending to its
destination via sendto(). (CVE-2016-8399, Moderate)
- It was found that the blk_rq_map_user_iov() function in
the Linux kernel's block device implementation did not
properly restrict the type of iterator, which could
allow a local attacker to read or write to arbitrary
kernel memory locations or cause a denial of service
(use-after-free) by leveraging write access to a /dev/sg
device. (CVE-2016-9576, CVE-2016-10088, Moderate)
- A flaw was found in the USB-MIDI Linux kernel driver: a
double-free error could be triggered for the 'umidi'
object. An attacker with physical access to the system
could use this flaw to escalate their privileges.
(CVE-2016-2384, Low)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1704&L=scientific-linux-errata&F=&S=&P=2945
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?a733115e"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-i686");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-firmware");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/27");
script_set_attribute(attribute:"patch_publication_date", value:"2017/03/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/06");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL6", reference:"kernel-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-abi-whitelists-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-debuginfo-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-devel-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debuginfo-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debuginfo-common-i686-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-devel-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-doc-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-firmware-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-headers-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-debuginfo-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"python-perf-2.6.32-696.el6")) flag++;
if (rpm_check(release:"SL6", reference:"python-perf-debuginfo-2.6.32-696.el6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-abi-whitelists / kernel-debug / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10088
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10142
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2069
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2384
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6480
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7042
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7097
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8399
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9576
www.nessus.org/u?a733115e
CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
81.1%