7.7 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
7.3 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.082 Low
EPSS
Percentile
94.3%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2016 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("1.3.6.1.4.1.25623.1.0.703629");
script_cve_id("CVE-2015-7974", "CVE-2015-7977", "CVE-2015-7978", "CVE-2015-7979", "CVE-2015-8138", "CVE-2015-8158", "CVE-2016-1547", "CVE-2016-1548", "CVE-2016-1550", "CVE-2016-2516", "CVE-2016-2518");
script_tag(name:"creation_date", value:"2016-08-02 05:26:41 +0000 (Tue, 02 Aug 2016)");
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:"7.1");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2017-02-24 19:10:24 +0000 (Fri, 24 Feb 2017)");
script_name("Debian: Security Advisory (DSA-3629-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2016 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB8");
script_xref(name:"Advisory-ID", value:"DSA-3629-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2016/DSA-3629-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-3629");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'ntp' package(s) announced via the DSA-3629-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities were discovered in the Network Time Protocol daemon and utility programs:
CVE-2015-7974
Matt Street discovered that insufficient key validation allows impersonation attacks between authenticated peers.
CVE-2015-7977
CVE-2015-7978
Stephen Gray discovered that a NULL pointer dereference and a buffer overflow in the handling of ntpdc reslist commands may result in denial of service.
CVE-2015-7979
Aanchal Malhotra discovered that if NTP is configured for broadcast mode, an attacker can send malformed authentication packets which break associations with the server for other broadcast clients.
CVE-2015-8138
Matthew van Gundy and Jonathan Gardner discovered that missing validation of origin timestamps in ntpd clients may result in denial of service.
CVE-2015-8158
Jonathan Gardner discovered that missing input sanitising in ntpq may result in denial of service.
CVE-2016-1547
Stephen Gray and Matthew van Gundy discovered that incorrect handling of crypto NAK packets may result in denial of service.
CVE-2016-1548
Jonathan Gardner and Miroslav Lichvar discovered that ntpd clients could be forced to change from basic client/server mode to interleaved symmetric mode, preventing time synchronisation.
CVE-2016-1550
Matthew van Gundy, Stephen Gray and Loganaden Velvindron discovered that timing leaks in the packet authentication code could result in recovery of a message digest.
CVE-2016-2516
Yihan Lian discovered that duplicate IPs on unconfig directives will trigger an assert.
CVE-2016-2518
Yihan Lian discovered that an OOB memory access could potentially crash ntpd.
For the stable distribution (jessie), these problems have been fixed in version 1:4.2.6.p5+dfsg-7+deb8u2.
For the testing distribution (stretch), these problems have been fixed in version 1:4.2.8p7+dfsg-1.
For the unstable distribution (sid), these problems have been fixed in version 1:4.2.8p7+dfsg-1.
We recommend that you upgrade your ntp packages.");
script_tag(name:"affected", value:"'ntp' package(s) on Debian 8.");
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 == "DEB8") {
if(!isnull(res = isdpkgvuln(pkg:"ntp", ver:"1:4.2.6.p5+dfsg-7+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ntp-doc", ver:"1:4.2.6.p5+dfsg-7+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"ntpdate", ver:"1:4.2.6.p5+dfsg-7+deb8u2", rls:"DEB8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
7.7 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
7.3 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.082 Low
EPSS
Percentile
94.3%