The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-3575 advisory.
In elfutils 0.175, a heap-based buffer over-read was discovered in the function elf32_xlatetom in elf32_xlatetom.c in libelf. A crafted ELF input can cause a segmentation fault leading to denial of service (program crash) because ebl_core_note does not reject malformed core file notes. (CVE-2019-7665)
A heap-based buffer over-read was discovered in the function read_srclines in dwarf_getsrclines.c in libdw in elfutils 0.175. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by eu-nm. (CVE-2019-7149)
An issue was discovered in elfutils 0.175. A segmentation fault can occur in the function elf64_xlatetom in libelf/elf32_xlatetom.c, due to dwfl_segment_report_module not checking whether the dyn data read from a core file is truncated. A crafted input can cause a program crash, leading to denial-of-service, as demonstrated by eu-stack. (CVE-2019-7150)
In elfutils 0.175, a negative-sized memcpy is attempted in elf_cvt_note in libelf/note_xlate.h because of an incorrect overflow check. Crafted elf input causes a segmentation fault, leading to denial of service (program crash). (CVE-2019-7664)
In elfutils 0.175, there is a buffer over-read in the ebl_object_note function in eblobjnote.c in libebl.
Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted elf file, as demonstrated by eu-readelf. (CVE-2019-7146)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2019-3575.
##
include('compat.inc');
if (description)
{
script_id(180659);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/07");
script_cve_id(
"CVE-2019-7146",
"CVE-2019-7149",
"CVE-2019-7150",
"CVE-2019-7664",
"CVE-2019-7665"
);
script_name(english:"Oracle Linux 8 : elfutils (ELSA-2019-3575)");
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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2019-3575 advisory.
- In elfutils 0.175, a heap-based buffer over-read was discovered in the function elf32_xlatetom in
elf32_xlatetom.c in libelf. A crafted ELF input can cause a segmentation fault leading to denial of
service (program crash) because ebl_core_note does not reject malformed core file notes. (CVE-2019-7665)
- A heap-based buffer over-read was discovered in the function read_srclines in dwarf_getsrclines.c in libdw
in elfutils 0.175. A crafted input can cause segmentation faults, leading to denial-of-service, as
demonstrated by eu-nm. (CVE-2019-7149)
- An issue was discovered in elfutils 0.175. A segmentation fault can occur in the function elf64_xlatetom
in libelf/elf32_xlatetom.c, due to dwfl_segment_report_module not checking whether the dyn data read from
a core file is truncated. A crafted input can cause a program crash, leading to denial-of-service, as
demonstrated by eu-stack. (CVE-2019-7150)
- In elfutils 0.175, a negative-sized memcpy is attempted in elf_cvt_note in libelf/note_xlate.h because of
an incorrect overflow check. Crafted elf input causes a segmentation fault, leading to denial of service
(program crash). (CVE-2019-7664)
- In elfutils 0.175, there is a buffer over-read in the ebl_object_note function in eblobjnote.c in libebl.
Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted elf file, as
demonstrated by eu-readelf. (CVE-2019-7146)
Note that Nessus has not tested for these issues 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-2019-3575.html");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-7665");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-7149");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/20");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/07");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-default-yama-scope");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-devel-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-libelf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-libelf-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-libelf-devel-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elfutils-libs");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Oracle Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");
exit(0);
}
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 os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);
var pkgs = [
{'reference':'elfutils-default-yama-scope-0.176-5.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-static-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-static-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libs-0.176-5.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-static-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-static-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libs-0.176-5.el8', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-devel-static-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libelf-devel-static-0.176-5.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'elfutils-libs-0.176-5.el8', 'cpu':'x86_64', 'release':'8', '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_WARNING,
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, 'elfutils / elfutils-default-yama-scope / elfutils-devel / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
oracle | linux | 8 | cpe:/o:oracle:linux:8 |
oracle | linux | elfutils | p-cpe:/a:oracle:linux:elfutils |
oracle | linux | elfutils-default-yama-scope | p-cpe:/a:oracle:linux:elfutils-default-yama-scope |
oracle | linux | elfutils-devel | p-cpe:/a:oracle:linux:elfutils-devel |
oracle | linux | elfutils-devel-static | p-cpe:/a:oracle:linux:elfutils-devel-static |
oracle | linux | elfutils-libelf | p-cpe:/a:oracle:linux:elfutils-libelf |
oracle | linux | elfutils-libelf-devel | p-cpe:/a:oracle:linux:elfutils-libelf-devel |
oracle | linux | elfutils-libelf-devel-static | p-cpe:/a:oracle:linux:elfutils-libelf-devel-static |
oracle | linux | elfutils-libs | p-cpe:/a:oracle:linux:elfutils-libs |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7146
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7149
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7150
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7664
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7665
linux.oracle.com/errata/ELSA-2019-3575.html