The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-1465 advisory.
The tpm_read function in the Linux kernel 2.6 does not properly clear memory, which might allow local users to read the results of the previous TPM command. (CVE-2011-1162)
Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.
(CVE-2011-1577)
kernel/taskstats.c in the Linux kernel before 3.1 allows local users to obtain sensitive I/O statistics by sending taskstats commands to a netlink socket, as demonstrated by discovering the length of another user’s password. (CVE-2011-2494)
The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets. (CVE-2011-2699)
Untrusted search path vulnerability in the perf_config function in tools/perf/util/config.c in perf, as distributed in the Linux kernel before 3.1, allows local users to overwrite arbitrary files via a crafted config file in the current working directory. (CVE-2011-2905)
The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values and sending crafted packets. (CVE-2011-3188)
Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory. (CVE-2011-3191)
Buffer overflow in the fuse_notify_inval_entry function in fs/fuse/dev.c in the Linux kernel before 3.1 allows local users to cause a denial of service (BUG_ON and system crash) by leveraging the ability to mount a FUSE filesystem. (CVE-2011-3353)
The dma_rx function in drivers/net/wireless/b43/dma.c in the Linux kernel before 2.6.39 does not properly allocate receive buffers, which allows remote attackers to cause a denial of service (system crash) via a crafted frame. (CVE-2011-3359)
The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share. (CVE-2011-3363)
A certain Red Hat patch to the vlan_hwaccel_do_receive function in net/8021q/vlan_core.c in the Linux kernel 2.6.32 on Red Hat Enterprise Linux (RHEL) 6 allows remote attackers to cause a denial of service (system crash) via priority-tagged VLAN frames. (CVE-2011-3593)
The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device. (CVE-2011-4326)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2011-1465.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(68393);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/08");
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_bugtraq_id(
47343,
48802,
49140,
49289,
49295,
49527,
49626,
49629,
50314,
50751
);
script_xref(name:"RHSA", value:"2011:1465");
script_name(english:"Oracle Linux 6 : kernel (ELSA-2011-1465)");
script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2011-1465 advisory.
- The tpm_read function in the Linux kernel 2.6 does not properly clear memory, which might allow local
users to read the results of the previous TPM command. (CVE-2011-1162)
- Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38
and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have
unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.
(CVE-2011-1577)
- kernel/taskstats.c in the Linux kernel before 3.1 allows local users to obtain sensitive I/O statistics by
sending taskstats commands to a netlink socket, as demonstrated by discovering the length of another
user's password. (CVE-2011-2494)
- The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values
separately for each destination, which makes it easier for remote attackers to cause a denial of service
(disrupted networking) by predicting these values and sending crafted packets. (CVE-2011-2699)
- Untrusted search path vulnerability in the perf_config function in tools/perf/util/config.c in perf, as
distributed in the Linux kernel before 3.1, allows local users to overwrite arbitrary files via a crafted
config file in the current working directory. (CVE-2011-2905)
- The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to
generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers
to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values
and sending crafted packets. (CVE-2011-3188)
- Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1
allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified
other impact via a large length value in a response to a read request for a directory. (CVE-2011-3191)
- Buffer overflow in the fuse_notify_inval_entry function in fs/fuse/dev.c in the Linux kernel before 3.1
allows local users to cause a denial of service (BUG_ON and system crash) by leveraging the ability to
mount a FUSE filesystem. (CVE-2011-3353)
- The dma_rx function in drivers/net/wireless/b43/dma.c in the Linux kernel before 2.6.39 does not properly
allocate receive buffers, which allows remote attackers to cause a denial of service (system crash) via a
crafted frame. (CVE-2011-3359)
- The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle
DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a
referral at the root of a share. (CVE-2011-3363)
- A certain Red Hat patch to the vlan_hwaccel_do_receive function in net/8021q/vlan_core.c in the Linux
kernel 2.6.32 on Red Hat Enterprise Linux (RHEL) 6 allows remote attackers to cause a denial of service
(system crash) via priority-tagged VLAN frames. (CVE-2011-3593)
- The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP
Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service
(system crash) by sending fragmented IPv6 UDP packets to a bridge device. (CVE-2011-4326)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2011-1465.html");
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_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-3191");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/04/13");
script_set_attribute(attribute:"patch_publication_date", value:"2011/11/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-firmware");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Oracle Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("linux_alt_patch_detect.nasl", "ssh_get_info.nasl");
script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('ksplice.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 6', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
var machine_uptrack_level = get_one_kb_item('Host/uptrack-uname-r');
if (machine_uptrack_level)
{
var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:"\.(x86_64|i[3-6]86|aarch64)$", replace:'');
var fixed_uptrack_levels = ['2.6.32-131.21.1.el6'];
foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {
if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for ELSA-2011-1465');
}
}
__rpm_report = 'Running KSplice level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\n\n';
}
var kernel_major_minor = get_kb_item('Host/uname/major_minor');
if (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');
var expected_kernel_major_minor = '2.6';
if (kernel_major_minor != expected_kernel_major_minor)
audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);
var pkgs = [
{'reference':'kernel-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-2.6.32'},
{'reference':'kernel-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-2.6.32'},
{'reference':'kernel-debug-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-2.6.32'},
{'reference':'kernel-debug-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-2.6.32'},
{'reference':'kernel-debug-devel-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-2.6.32'},
{'reference':'kernel-debug-devel-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debug-devel-2.6.32'},
{'reference':'kernel-devel-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-2.6.32'},
{'reference':'kernel-devel-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-2.6.32'},
{'reference':'kernel-firmware-2.6.32-131.21.1.el6', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-firmware-2.6.32'},
{'reference':'kernel-headers-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-2.6.32'},
{'reference':'kernel-headers-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-2.6.32'},
{'reference':'perf-2.6.32-131.21.1.el6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perf-2.6.32-131.21.1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var release = NULL;
var sp = NULL;
var cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = 'EL' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && release) {
if (exists_check) {
if (rpm_exists(release:release, rpm:exists_check) && rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
} else {
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel / kernel-debug / kernel-debug-devel / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
oracle | linux | 6 | cpe:/o:oracle:linux:6 |
oracle | linux | kernel | p-cpe:/a:oracle:linux:kernel |
oracle | linux | kernel-debug | p-cpe:/a:oracle:linux:kernel-debug |
oracle | linux | kernel-debug-devel | p-cpe:/a:oracle:linux:kernel-debug-devel |
oracle | linux | kernel-devel | p-cpe:/a:oracle:linux:kernel-devel |
oracle | linux | kernel-firmware | p-cpe:/a:oracle:linux:kernel-firmware |
oracle | linux | kernel-headers | p-cpe:/a:oracle:linux:kernel-headers |
oracle | linux | perf | p-cpe:/a:oracle:linux:perf |
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
linux.oracle.com/errata/ELSA-2011-1465.html