A bug was found in cyrus-sasl’s DIGEST-MD5 authentication mechanism.
As part of the DIGEST-MD5 authentication exchange, the client is expected to send a specific set of information to the server. If one of these items (the ‘realm’) was not sent or was malformed, it was possible for a remote unauthenticated attacker to cause a denial of service (segmentation fault) on the server. (CVE-2006-1721)
This errata also fixes the following bugs in Scientific Linux 4 :
the Kerberos 5 library included in Red Hat Enterprise Linux 4 was not thread safe. This update adds functionality which allows it to be used safely in a threaded application.
several memory leak bugs were fixed in cyrus-sasl’s DIGEST-MD5 authentication plug-in.
/dev/urandom is now used by default on systems which don’t support hwrandom. Previously, dev/random was the default.
cyrus-sasl needs zlib-devel to build properly. This dependency information is now included in the package.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(60245);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2006-1721");
script_name(english:"Scientific Linux Security Update : cyrus-sasl on SL4.x, SL3.x i386/x86_64");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"A bug was found in cyrus-sasl's DIGEST-MD5 authentication mechanism.
As part of the DIGEST-MD5 authentication exchange, the client is
expected to send a specific set of information to the server. If one
of these items (the 'realm') was not sent or was malformed, it was
possible for a remote unauthenticated attacker to cause a denial of
service (segmentation fault) on the server. (CVE-2006-1721)
This errata also fixes the following bugs in Scientific Linux 4 :
- the Kerberos 5 library included in Red Hat Enterprise
Linux 4 was not thread safe. This update adds
functionality which allows it to be used safely in a
threaded application.
- several memory leak bugs were fixed in cyrus-sasl's
DIGEST-MD5 authentication plug-in.
- /dev/urandom is now used by default on systems which
don't support hwrandom. Previously, dev/random was the
default.
- cyrus-sasl needs zlib-devel to build properly. This
dependency information is now included in the package."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind0709&L=scientific-linux-errata&T=0&P=429
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?2788f60d"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"patch_publication_date", value:"2007/09/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL3", reference:"cyrus-sasl-2.1.15-15")) flag++;
if (rpm_check(release:"SL3", reference:"cyrus-sasl-devel-2.1.15-15")) flag++;
if (rpm_check(release:"SL3", reference:"cyrus-sasl-gssapi-2.1.15-15")) flag++;
if (rpm_check(release:"SL3", reference:"cyrus-sasl-md5-2.1.15-15")) flag++;
if (rpm_check(release:"SL3", reference:"cyrus-sasl-plain-2.1.15-15")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-devel-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-gssapi-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-md5-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-ntlm-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-plain-2.1.19-14")) flag++;
if (rpm_check(release:"SL4", reference:"cyrus-sasl-sql-2.1.19-14")) flag++;
if (flag)
{
if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
else security_note(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |