CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
AI Score
Confidence
Low
EPSS
Percentile
42.0%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2015 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("1.3.6.1.4.1.25623.1.0.842567");
script_cve_id("CVE-2015-7872", "CVE-2015-8104");
script_tag(name:"creation_date", value:"2015-12-18 04:44:28 +0000 (Fri, 18 Dec 2015)");
script_version("2024-02-02T05:06:05+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"4.7");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:N/I:N/A:C");
script_name("Ubuntu: Security Advisory (USN-2840-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2015 Greenbone AG");
script_family("Ubuntu Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU12\.04\ LTS");
script_xref(name:"Advisory-ID", value:"USN-2840-1");
script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-2840-1");
script_tag(name:"summary", value:"The remote host is missing an update for the 'linux' package(s) announced via the USN-2840-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted
to garbage collect incompletely instantiated keys. A local unprivileged
attacker could use this to cause a denial of service (system crash).
(CVE-2015-7872)
Jan Beulich discovered that the KVM svm hypervisor implementation in the
Linux kernel did not properly catch Debug exceptions on AMD processors. An
attacker in a guest virtual machine could use this to cause a denial of
service (system crash) in the host OS. (CVE-2015-8104)");
script_tag(name:"affected", value:"'linux' package(s) on Ubuntu 12.04.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "UBUNTU12.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-generic", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-generic-pae", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-highbank", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-omap", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-powerpc-smp", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-powerpc64-smp", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.2.0-96-virtual", ver:"3.2.0-96.136", rls:"UBUNTU12.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);