7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.6 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.017 Low
EPSS
Percentile
87.6%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.1.4.2017.1635.1");
script_cve_id("CVE-2017-7508", "CVE-2017-7520", "CVE-2017-7521");
script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
script_version("2024-02-02T14:37:49+0000");
script_tag(name:"last_modification", value:"2024-02-02 14:37:49 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2017-06-30 14:28:46 +0000 (Fri, 30 Jun 2017)");
script_name("SUSE: Security Advisory (SUSE-SU-2017:1635-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("SuSE Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0|SLES12\.0SP1|SLES12\.0SP2)");
script_xref(name:"Advisory-ID", value:"SUSE-SU-2017:1635-1");
script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2017/suse-su-20171635-1/");
script_tag(name:"summary", value:"The remote host is missing an update for the 'openvpn' package(s) announced via the SUSE-SU-2017:1635-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"This update for openvpn fixes the following issues:
- Some parts of the certificate-parsing code did not always clear all
allocated memory. This would have allowed clients to leak a few bytes of
memory for each connection attempt, thereby facilitating a (quite
inefficient) DoS attack on the server. [bsc#1044947, CVE-2017-7521]
- The ASN1 parsing code contained a bug that could have resulted in some
buffers being free()d twice, and this issue could have potentially been
triggered remotely by a VPN peer. [bsc#1044947, CVE-2017-7521]
- If clients used a HTTP proxy with NTLM authentication, a
man-in-the-middle attacker between client and proxy could cause the
client to crash or disclose at most 96 bytes of stack memory. The
disclosed stack memory was likely to contain the proxy password. If the
proxy password had not been reused, this was unlikely to compromise the
security of the OpenVPN tunnel itself. Clients who did not use the
--http-proxy option with ntlm2 authentication were not affected.
[bsc#1044947, CVE-2017-7520]
- It was possible to trigger an assertion by sending a malformed IPv6
packet. That issue could have been abused to remotely shutdown an
openvpn server or client, if IPv6 and --mssfix were enabled and if the
IPv6 networks used inside the VPN were known. [bsc#1044947,
CVE-2017-7508]");
script_tag(name:"affected", value:"'openvpn' package(s) on SUSE Linux Enterprise Desktop 12-SP2, SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 12-SP1, SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server for Raspberry Pi 12-SP2, SUSE Linux Enterprise Server for SAP 12, SUSE Linux Enterprise Server for SAP 12-SP1, SUSE OpenStack Cloud 6.");
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-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "SLES12.0") {
if(!isnull(res = isrpmvuln(pkg:"openvpn", rpm:"openvpn~2.3.8~16.17.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin", rpm:"openvpn-auth-pam-plugin~2.3.8~16.17.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin-debuginfo", rpm:"openvpn-auth-pam-plugin-debuginfo~2.3.8~16.17.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debuginfo", rpm:"openvpn-debuginfo~2.3.8~16.17.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debugsource", rpm:"openvpn-debugsource~2.3.8~16.17.1", rls:"SLES12.0"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "SLES12.0SP1") {
if(!isnull(res = isrpmvuln(pkg:"openvpn", rpm:"openvpn~2.3.8~16.17.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin", rpm:"openvpn-auth-pam-plugin~2.3.8~16.17.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin-debuginfo", rpm:"openvpn-auth-pam-plugin-debuginfo~2.3.8~16.17.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debuginfo", rpm:"openvpn-debuginfo~2.3.8~16.17.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debugsource", rpm:"openvpn-debugsource~2.3.8~16.17.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "SLES12.0SP2") {
if(!isnull(res = isrpmvuln(pkg:"openvpn", rpm:"openvpn~2.3.8~16.17.1", rls:"SLES12.0SP2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin", rpm:"openvpn-auth-pam-plugin~2.3.8~16.17.1", rls:"SLES12.0SP2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-auth-pam-plugin-debuginfo", rpm:"openvpn-auth-pam-plugin-debuginfo~2.3.8~16.17.1", rls:"SLES12.0SP2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debuginfo", rpm:"openvpn-debuginfo~2.3.8~16.17.1", rls:"SLES12.0SP2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openvpn-debugsource", rpm:"openvpn-debugsource~2.3.8~16.17.1", rls:"SLES12.0SP2"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.6 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.017 Low
EPSS
Percentile
87.6%