Updated libssh2 packages fix security vulnerability :
Mariusz Ziulek reported that libssh2, a SSH2 client-side library, was reading and using the SSH_MSG_KEXINIT packet without doing sufficient range checks when negotiating a new SSH session with a remote server.
A malicious attacker could man in the middle a real server and cause a client using the libssh2 library to crash (denial of service) or otherwise read and use unintended memory areas in this process (CVE-2015-1782).
Update :
Packages were misssing for Mandriva Business Server 1 with the MDVSA-2015:148 advisory which are now being provided.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandriva Linux Security Advisory MDVSA-2015:148.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82401);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2015-1782");
script_bugtraq_id(73061);
script_xref(name:"MDVSA", value:"2015:148-1");
script_name(english:"Mandriva Linux Security Advisory : libssh2 (MDVSA-2015:148-1)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Mandriva Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Updated libssh2 packages fix security vulnerability :
Mariusz Ziulek reported that libssh2, a SSH2 client-side library, was
reading and using the SSH_MSG_KEXINIT packet without doing sufficient
range checks when negotiating a new SSH session with a remote server.
A malicious attacker could man in the middle a real server and cause a
client using the libssh2 library to crash (denial of service) or
otherwise read and use unintended memory areas in this process
(CVE-2015-1782).
Update :
Packages were misssing for Mandriva Business Server 1 with the
MDVSA-2015:148 advisory which are now being provided."
);
script_set_attribute(
attribute:"see_also",
value:"http://advisories.mageia.org/MGASA-2015-0107.html"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected lib64ssh2-devel and / or lib64ssh2_1 packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64ssh2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64ssh2_1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/30");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
script_family(english:"Mandriva Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
flag = 0;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64ssh2-devel-1.4.0-2.1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"lib64ssh2_1-1.4.0-2.1.mbs1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
mandriva | linux | lib64ssh2-devel | p-cpe:/a:mandriva:linux:lib64ssh2-devel |
mandriva | linux | lib64ssh2_1 | p-cpe:/a:mandriva:linux:lib64ssh2_1 |
mandriva | business_server | 1 | cpe:/o:mandriva:business_server:1 |