CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
80.6%
Security Fix(es) :
zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)
zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)
zsh: buffer overrun in symlinks (CVE-2017-18206)
zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('compat.inc');
if (description)
{
script_id(110893);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/06");
script_cve_id(
"CVE-2014-10072",
"CVE-2017-18206",
"CVE-2018-1083",
"CVE-2018-1100"
);
script_name(english:"Scientific Linux Security Update : zsh on SL6.x i386/x86_64 (20180619)");
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) :
- zsh: Stack-based buffer overflow in gen_matches_files()
at compctl.c (CVE-2018-1083)
- zsh: buffer overflow when scanning very long directory
paths for symbolic links (CVE-2014-10072)
- zsh: buffer overrun in symlinks (CVE-2017-18206)
- zsh: buffer overflow in utils.c:checkmailpath() can lead
to local arbitrary code execution (CVE-2018-1100)");
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1807&L=scientific-linux-errata&F=&S=&P=714
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?12b369be");
script_set_attribute(attribute:"solution", value:
"Update the affected zsh, zsh-debuginfo and / or zsh-html packages.");
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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-18206");
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:"2018/02/27");
script_set_attribute(attribute:"patch_publication_date", value:"2018/06/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:zsh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:zsh-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:zsh-html");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Scientific Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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:"zsh-4.3.11-8.el6")) flag++;
if (rpm_check(release:"SL6", reference:"zsh-debuginfo-4.3.11-8.el6")) flag++;
if (rpm_check(release:"SL6", reference:"zsh-html-4.3.11-8.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, "zsh / zsh-debuginfo / zsh-html");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
80.6%