Check the version of libssh2
# 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("1.3.6.1.4.1.25623.1.0.882417");
script_version("2023-07-11T05:06:07+0000");
script_tag(name:"last_modification", value:"2023-07-11 05:06:07 +0000 (Tue, 11 Jul 2023)");
script_tag(name:"creation_date", value:"2016-03-11 06:01:51 +0100 (Fri, 11 Mar 2016)");
script_cve_id("CVE-2016-0787");
script_tag(name:"cvss_base", value:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2018-10-30 16:27:00 +0000 (Tue, 30 Oct 2018)");
script_tag(name:"qod_type", value:"package");
script_name("CentOS Update for libssh2 CESA-2016:0428 centos6");
script_tag(name:"summary", value:"Check the version of libssh2");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The libssh2 packages provide a library
that implements the SSHv2 protocol.
A type confusion issue was found in the way libssh2 generated ephemeral
secrets for the diffie-hellman-group1 and diffie-hellman-group14 key
exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use
significantly less secure random parameters. (CVE-2016-0787)
Red Hat would like to thank Aris Adamantiadis for reporting this issue.
All libssh2 users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing these
updated packages, all running applications using libssh2 must be restarted
for this update to take effect.");
script_tag(name:"affected", value:"libssh2 on CentOS 6");
script_tag(name:"solution", value:"Please install the updated packages.");
script_xref(name:"CESA", value:"2016:0428");
script_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2016-March/021726.html");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2016 Greenbone AG");
script_family("CentOS Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS6");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
if(release == "CentOS6")
{
if ((res = isrpmvuln(pkg:"libssh2", rpm:"libssh2~1.4.2~2.el6_7.1", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"libssh2-devel", rpm:"libssh2-devel~1.4.2~2.el6_7.1", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if ((res = isrpmvuln(pkg:"libssh2-docs", rpm:"libssh2-docs~1.4.2~2.el6_7.1", rls:"CentOS6")) != NULL)
{
security_message(data:res);
exit(0);
}
if (__pkg_match) exit(99);
exit(0);
}