The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.
nasm: double-free vulnerability in pp_tokline asm/preproc.c (CVE-2020-24978)
In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap- based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
(CVE-2017-11111)
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service. (CVE-2017-14228)
In Netwide Assembler (NASM) 2.14rc0, there is a SEGV on unknown address that will cause a remote denial of service attack, because asm/preproc.c mishandles macro calls that have the wrong number of arguments.
(CVE-2017-17810)
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer overflow that will cause a remote denial of service attack, related to a strcpy in paste_tokens in asm/preproc.c, a similar issue to CVE-2017-11111. (CVE-2017-17811)
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read in the function detoken() in asm/preproc.c that will cause a remote denial of service attack. (CVE-2017-17812)
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in the pp_list_one_macro function in asm/preproc.c that will cause a remote denial of service attack, related to mishandling of line-syntax errors. (CVE-2017-17813)
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in do_directive in asm/preproc.c that will cause a remote denial of service attack. (CVE-2017-17814)
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c that will cause a remote denial of service attack, because of a missing check for the relationship between minimum and maximum parameter counts. (CVE-2017-17815)
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_getline in asm/preproc.c that will cause a remote denial of service attack. (CVE-2017-17816)
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_verror in asm/preproc.c that will cause a remote denial of service attack. (CVE-2017-17817)
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read that will cause a remote denial of service attack, related to a while loop in paste_tokens in asm/preproc.c. (CVE-2017-17818)
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function find_cc() in asm/preproc.c that will cause a remote denial of service attack, because pointers associated with skip_white_ calls are not validated. (CVE-2017-17819)
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_list_one_macro in asm/preproc.c that will lead to a remote denial of service attack, related to mishandling of operand-type errors.
(CVE-2017-17820)
Netwide Assembler (NASM) 2.14rc0 has a division-by-zero vulnerability in the expr5 function in asm/eval.c via a malformed input file. (CVE-2018-10016)
Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or possibly have unspecified other impact via a crafted ELF file. (CVE-2018-10254)
Netwide Assembler (NASM) 2.14rc0 has an endless while loop in the assemble_file function of asm/nasm.c because of a globallineno integer overflow. (CVE-2018-10316)
Netwide Assembler (NASM) 2.14rc15 has a buffer over-read in x86/regflags.c. (CVE-2018-16382)
Netwide Assembler (NASM) through 2.14rc16 has memory leaks that may lead to DoS, related to nasm_malloc in nasmlib/malloc.c. (CVE-2018-19213)
Netwide Assembler (NASM) 2.14rc15 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c for insufficient input. (CVE-2018-19214)
Netwide Assembler (NASM) 2.14rc16 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c for the special cases of the % and $ and ! characters. (CVE-2018-19215)
There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can result in a negative integer. (CVE-2018-19755)
Netwide Assembler (NASM) 2.13.02rc2 has a buffer over-read in the parse_line function in asm/parser.c via uncontrolled access to nasm_reg_flags. (CVE-2018-8883)
In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291. (CVE-2019-20334)
In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in set_text_free when called from expand_one_smacro in asm/preproc.c. (CVE-2019-20352)
An infinite recursion issue was discovered in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem resulting from infinite recursion in the functions expr, rexp, bexpr and cexpr in certain scenarios involving lots of ‘{’ characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file. (CVE-2019-6290)
An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain scenarios involving lots of ‘!’ or ‘+’ or ‘-’ characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file. (CVE-2019-6291)
In Netwide Assembler (NASM) 2.15rc10, there is heap use-after-free in saa_wbytes in nasmlib/saa.c.
(CVE-2020-24241)
In Netwide Assembler (NASM) 2.15rc10, SEGV can be triggered in tok_text in asm/preproc.c by accessing READ memory. (CVE-2020-24242)
Note that Nessus has not tested for these issues but has instead relied on the package manager’s report that the package is installed.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory nasm. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(195778);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");
script_cve_id(
"CVE-2017-11111",
"CVE-2017-14228",
"CVE-2017-17810",
"CVE-2017-17811",
"CVE-2017-17812",
"CVE-2017-17813",
"CVE-2017-17814",
"CVE-2017-17815",
"CVE-2017-17816",
"CVE-2017-17817",
"CVE-2017-17818",
"CVE-2017-17819",
"CVE-2017-17820",
"CVE-2018-8883",
"CVE-2018-10016",
"CVE-2018-10254",
"CVE-2018-10316",
"CVE-2018-16382",
"CVE-2018-19213",
"CVE-2018-19214",
"CVE-2018-19215",
"CVE-2018-19755",
"CVE-2019-6290",
"CVE-2019-6291",
"CVE-2019-20334",
"CVE-2019-20352",
"CVE-2020-24241",
"CVE-2020-24242",
"CVE-2020-24978"
);
script_name(english:"RHEL 5 : nasm (Unpatched Vulnerability)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 5 host is affected by multiple vulnerabilities that will not be patched.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.
- nasm: double-free vulnerability in pp_tokline asm/preproc.c (CVE-2020-24978)
- In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-
based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
(CVE-2017-11111)
- In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in
preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service. (CVE-2017-14228)
- In Netwide Assembler (NASM) 2.14rc0, there is a SEGV on unknown address that will cause a remote denial
of service attack, because asm/preproc.c mishandles macro calls that have the wrong number of arguments.
(CVE-2017-17810)
- In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer overflow that will cause a remote denial
of service attack, related to a strcpy in paste_tokens in asm/preproc.c, a similar issue to
CVE-2017-11111. (CVE-2017-17811)
- In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read in the function detoken() in
asm/preproc.c that will cause a remote denial of service attack. (CVE-2017-17812)
- In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in the pp_list_one_macro function in
asm/preproc.c that will cause a remote denial of service attack, related to mishandling of line-syntax
errors. (CVE-2017-17813)
- In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in do_directive in asm/preproc.c that will
cause a remote denial of service attack. (CVE-2017-17814)
- In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c
that will cause a remote denial of service attack, because of a missing check for the relationship between
minimum and maximum parameter counts. (CVE-2017-17815)
- In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_getline in asm/preproc.c that will
cause a remote denial of service attack. (CVE-2017-17816)
- In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_verror in asm/preproc.c that will
cause a remote denial of service attack. (CVE-2017-17817)
- In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read that will cause a remote
denial of service attack, related to a while loop in paste_tokens in asm/preproc.c. (CVE-2017-17818)
- In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function find_cc() in
asm/preproc.c that will cause a remote denial of service attack, because pointers associated with
skip_white_ calls are not validated. (CVE-2017-17819)
- In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_list_one_macro in asm/preproc.c that
will lead to a remote denial of service attack, related to mishandling of operand-type errors.
(CVE-2017-17820)
- Netwide Assembler (NASM) 2.14rc0 has a division-by-zero vulnerability in the expr5 function in asm/eval.c
via a malformed input file. (CVE-2018-10016)
- Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the
disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or
possibly have unspecified other impact via a crafted ELF file. (CVE-2018-10254)
- Netwide Assembler (NASM) 2.14rc0 has an endless while loop in the assemble_file function of asm/nasm.c
because of a globallineno integer overflow. (CVE-2018-10316)
- Netwide Assembler (NASM) 2.14rc15 has a buffer over-read in x86/regflags.c. (CVE-2018-16382)
- Netwide Assembler (NASM) through 2.14rc16 has memory leaks that may lead to DoS, related to nasm_malloc in
nasmlib/malloc.c. (CVE-2018-19213)
- Netwide Assembler (NASM) 2.14rc15 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c
for insufficient input. (CVE-2018-19214)
- Netwide Assembler (NASM) 2.14rc16 has a heap-based buffer over-read in expand_mmac_params in asm/preproc.c
for the special cases of the % and $ and ! characters. (CVE-2018-19215)
- There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM)
2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can
result in a negative integer. (CVE-2018-19755)
- Netwide Assembler (NASM) 2.13.02rc2 has a buffer over-read in the parse_line function in asm/parser.c via
uncontrolled access to nasm_reg_flags. (CVE-2018-8883)
- In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This
potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and
stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291. (CVE-2019-20334)
- In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in
set_text_free when called from expand_one_smacro in asm/preproc.c. (CVE-2019-20352)
- An infinite recursion issue was discovered in eval.c in Netwide Assembler (NASM) through 2.14.02. There is
a stack exhaustion problem resulting from infinite recursion in the functions expr, rexp, bexpr and cexpr
in certain scenarios involving lots of '{' characters. Remote attackers could leverage this vulnerability
to cause a denial-of-service via a crafted asm file. (CVE-2019-6290)
- An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There
is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain
scenarios involving lots of '!' or '+' or '-' characters. Remote attackers could leverage this
vulnerability to cause a denial-of-service via a crafted asm file. (CVE-2019-6291)
- In Netwide Assembler (NASM) 2.15rc10, there is heap use-after-free in saa_wbytes in nasmlib/saa.c.
(CVE-2020-24241)
- In Netwide Assembler (NASM) 2.15rc10, SEGV can be triggered in tok_text in asm/preproc.c by accessing READ
memory. (CVE-2020-24242)
Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:N/S:U/C:H/I:H/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-2020-24978");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vendor_unpatched", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nasm");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '5')) audit(AUDIT_OS_NOT, 'Red Hat 5.x', 'Red Hat ' + 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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'pkgs': [
{'reference':'nasm', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'nasm'}
]
}
];
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var pkg ( constraint_array['pkgs'] ) {
var unpatched_pkg = NULL;
var _release = NULL;
var sp = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var exists_check = NULL;
var cves = NULL;
if (!empty_or_null(pkg['unpatched_pkg'])) unpatched_pkg = pkg['unpatched_pkg'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (unpatched_pkg &&
_release &&
(!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : unpatched_packages_report()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'nasm');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11111
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14228
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17810
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17811
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17812
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17813
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17814
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17815
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17816
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17817
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17818
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17819
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17820
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10016
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10254
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10316
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16382
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19213
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19214
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19215
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19755
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8883
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20334
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20352
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6290
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6291
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24241
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24242
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24978