The kernel packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issues :
IPv6 fragment identification value generation could allow a remote attacker to disrupt a target systemâs networking, preventing legitimate users from accessing its services. (CVE-2011-2699, Important)
A signedness issue was found in the Linux kernelâs CIFS (Common Internet File System) implementation. A malicious CIFS server could send a specially crafted response to a directory read request that would result in a denial of service or privilege escalation on a system that has a CIFS share mounted. (CVE-2011-3191, Important)
A flaw was found in the way the Linux kernel handled fragmented IPv6 UDP datagrams over the bridge with UDP Fragmentation Offload (UFO) functionality on. A remote attacker could use this flaw to cause a denial of service. (CVE-2011-4326, Important)
The way IPv4 and IPv6 protocol sequence numbers and fragment IDs were generated could allow a man-in-the-middle attacker to inject packets and possibly hijack connections. Protocol sequence numbers and fragment IDs are now more random. (CVE-2011-3188, Moderate)
A buffer overflow flaw was found in the Linux kernelâs FUSE (Filesystem in Userspace) implementation. A local user in the fuse group who has access to mount a FUSE file system could use this flaw to cause a denial of service. (CVE-2011-3353, Moderate)
A flaw was found in the b43 driver in the Linux kernel.
If a system had an active wireless interface that uses the b43 driver, an attacker able to send a specially crafted frame to that interface could cause a denial of service. (CVE-2011-3359, Moderate)
A flaw was found in the way CIFS shares with DFS referrals at their root were handled. An attacker on the local network who is able to deploy a malicious CIFS server could create a CIFS network share that, when mounted, would cause the client system to crash.
(CVE-2011-3363, Moderate)
A flaw was found in the way the Linux kernel handled VLAN 0 frames with the priority tag set. When using certain network drivers, an attacker on the local network could use this flaw to cause a denial of service. (CVE-2011-3593, Moderate)
A flaw in the way memory containing security-related data was handled in tpm_read() could allow a local, unprivileged user to read the results of a previously run TPM command. (CVE-2011-1162, Low)
A heap overflow flaw was found in the Linux kernelâs EFI GUID Partition Table (GPT) implementation. A local attacker could use this flaw to cause a denial of service by mounting a disk that contains specially crafted partition tables. (CVE-2011-1577, Low)
The I/O statistics from the taskstats subsystem could be read without any restrictions. A local, unprivileged user could use this flaw to gather confidential information, such as the length of a password used in a process. (CVE-2011-2494, Low)
It was found that the perf tool, a part of the Linux kernelâs Performance Events implementation, could load its configuration file from the current working directory. If a local user with access to the perf tool were tricked into running perf in a directory that contains a specially crafted configuration file, it could cause perf to overwrite arbitrary files and directories accessible to that user. (CVE-2011-2905, Low)
This update also fixes various bugs.
#%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(61179);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2011-1162", "CVE-2011-1577", "CVE-2011-2494", "CVE-2011-2699", "CVE-2011-2905", "CVE-2011-3188", "CVE-2011-3191", "CVE-2011-3353", "CVE-2011-3359", "CVE-2011-3363", "CVE-2011-3593", "CVE-2011-4326");
script_name(english:"Scientific Linux Security Update : kernel on SL6.x i386/x86_64");
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:
"The kernel packages contain the Linux kernel, the core of any Linux
operating system.
This update fixes the following security issues :
- IPv6 fragment identification value generation could
allow a remote attacker to disrupt a target system's
networking, preventing legitimate users from accessing
its services. (CVE-2011-2699, Important)
- A signedness issue was found in the Linux kernel's CIFS
(Common Internet File System) implementation. A
malicious CIFS server could send a specially crafted
response to a directory read request that would result
in a denial of service or privilege escalation on a
system that has a CIFS share mounted. (CVE-2011-3191,
Important)
- A flaw was found in the way the Linux kernel handled
fragmented IPv6 UDP datagrams over the bridge with UDP
Fragmentation Offload (UFO) functionality on. A remote
attacker could use this flaw to cause a denial of
service. (CVE-2011-4326, Important)
- The way IPv4 and IPv6 protocol sequence numbers and
fragment IDs were generated could allow a
man-in-the-middle attacker to inject packets and
possibly hijack connections. Protocol sequence numbers
and fragment IDs are now more random. (CVE-2011-3188,
Moderate)
- A buffer overflow flaw was found in the Linux kernel's
FUSE (Filesystem in Userspace) implementation. A local
user in the fuse group who has access to mount a FUSE
file system could use this flaw to cause a denial of
service. (CVE-2011-3353, Moderate)
- A flaw was found in the b43 driver in the Linux kernel.
If a system had an active wireless interface that uses
the b43 driver, an attacker able to send a specially
crafted frame to that interface could cause a denial of
service. (CVE-2011-3359, Moderate)
- A flaw was found in the way CIFS shares with DFS
referrals at their root were handled. An attacker on the
local network who is able to deploy a malicious CIFS
server could create a CIFS network share that, when
mounted, would cause the client system to crash.
(CVE-2011-3363, Moderate)
- A flaw was found in the way the Linux kernel handled
VLAN 0 frames with the priority tag set. When using
certain network drivers, an attacker on the local
network could use this flaw to cause a denial of
service. (CVE-2011-3593, Moderate)
- A flaw in the way memory containing security-related
data was handled in tpm_read() could allow a local,
unprivileged user to read the results of a previously
run TPM command. (CVE-2011-1162, Low)
- A heap overflow flaw was found in the Linux kernel's EFI
GUID Partition Table (GPT) implementation. A local
attacker could use this flaw to cause a denial of
service by mounting a disk that contains specially
crafted partition tables. (CVE-2011-1577, Low)
- The I/O statistics from the taskstats subsystem could be
read without any restrictions. A local, unprivileged
user could use this flaw to gather confidential
information, such as the length of a password used in a
process. (CVE-2011-2494, Low)
- It was found that the perf tool, a part of the Linux
kernel's Performance Events implementation, could load
its configuration file from the current working
directory. If a local user with access to the perf tool
were tricked into running perf in a directory that
contains a specially crafted configuration file, it
could cause perf to overwrite arbitrary files and
directories accessible to that user. (CVE-2011-2905,
Low)
This update also fixes various bugs."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1111&L=scientific-linux-errata&T=0&P=2755
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?1ddb338c"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/05/03");
script_set_attribute(attribute:"patch_publication_date", value:"2011/11/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 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("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");
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-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-debuginfo-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debug-devel-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-debuginfo-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", cpu:"i386", reference:"kernel-debuginfo-common-i686-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-devel-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-doc-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-firmware-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"kernel-headers-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-2.6.32-131.21.1.el6")) flag++;
if (rpm_check(release:"SL6", reference:"perf-debuginfo-2.6.32-131.21.1.el6")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1162
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1577
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2494
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2699
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2905
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3188
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3191
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3353
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3359
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3363
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3593
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4326
www.nessus.org/u?1ddb338c