CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
AI Score
Confidence
Low
EPSS
Percentile
26.7%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.871863");
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:"2017-08-04 12:48:00 +0530 (Fri, 04 Aug 2017)");
script_cve_id("CVE-2015-7496");
script_tag(name:"cvss_base", value:"7.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"qod_type", value:"package");
script_name("RedHat Update for gdm and gnome-session RHSA-2017:2128-01");
script_tag(name:"summary", value:"The remote host is missing an update for the 'gdm and gnome-session'
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 GNOME Display Manager (GDM) provides the
graphical login screen shown shortly after boot up, log out, and when
user-switching. The following packages have been upgraded to a later upstream
version: gdm (3.22.3), gnome-session (3.22.3). (BZ#1386862, BZ#1386957) Security
Fix(es): * It was found that gdm could crash due to a signal handler dispatched
to an invalid conversation. An attacker could crash gdm by holding the escape
key when the screen is locked, possibly bypassing the locked screen.
(CVE-2015-7496) Additional Changes: For detailed information on changes in this
release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the
References section.");
script_tag(name:"affected", value:"gdm and gnome-session on Red Hat Enterprise Linux Server (v. 7)");
script_tag(name:"solution", value:"Please Install the Updated Packages.");
script_xref(name:"RHSA", value:"2017:2128-01");
script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2017-August/msg00027.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 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:"gdm", rpm:"gdm~3.22.3~11.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"gdm-debuginfo", rpm:"gdm-debuginfo~3.22.3~11.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"gnome-session", rpm:"gnome-session~3.22.3~4.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"gnome-session-debuginfo", rpm:"gnome-session-debuginfo~3.22.3~4.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"gnome-session-xsession", rpm:"gnome-session-xsession~3.22.3~4.el7", rls:"RHENT_7")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}