CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
100.0%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2018 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.812399");
script_version("2024-03-21T05:06:54+0000");
script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
script_tag(name:"creation_date", value:"2018-01-05 23:54:11 +0100 (Fri, 05 Jan 2018)");
script_cve_id("CVE-2017-5715");
script_tag(name:"cvss_base", value:"1.9");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-04-14 14:52:00 +0000 (Wed, 14 Apr 2021)");
script_tag(name:"qod_type", value:"package");
script_name("RedHat Update for microcode_ctl RHSA-2018:0012-01");
script_tag(name:"summary", value:"The remote host is missing an update for the 'microcode_ctl'
package(s) announced via the referenced advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The microcode_ctl packages provide microcode
updates for Intel and AMD processors. Security Fix(es): * An industry-wide issue
was found in the way many modern microprocessor designs have implemented
speculative execution of instructions (a commonly used performance
optimization). There are three primary variants of the issue which differ in the
way the speculative execution can be exploited. Variant CVE-2017-5715 triggers
the speculative execution by utilizing branch target injection. It relies on the
presence of a precisely-defined instruction sequence in the privileged code as
well as the fact that memory accesses may cause allocation into the
microprocessor's data cache even for speculatively executed instructions that
never actually commit (retire). As a result, an unprivileged attacker could use
this flaw to cross the syscall and guest/host boundaries and read privileged
memory by conducting targeted cache side-channel attacks. (CVE-2017-5715) Note:
This is the microcode counterpart of the CVE-2017-5715 kernel mitigation. Red
Hat would like to thank Google Project Zero for reporting this issue.");
script_tag(name:"affected", value:"microcode_ctl on Red Hat Enterprise Linux Server (v. 7)");
script_tag(name:"solution", value:"Please Install the Updated Packages.");
script_xref(name:"RHSA", value:"2018:0012-01");
script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2018-January/msg00010.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Red Hat Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_7");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release) exit(0);
res = "";
if(release == "RHENT_7")
{
if ((res = isrpmvuln(pkg:"microcode_ctl", rpm:"microcode_ctl~2.1~22.2.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"microcode_ctl-debuginfo", rpm:"microcode_ctl-debuginfo~2.1~22.2.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
100.0%