Updated squid packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1, 3, 4 and 5.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects.
A flaw was found in the way squid manipulated HTTP headers for cached objects stored in system memory. An attacker could use this flaw to cause a squid child process to exit. This interrupted existing connections and made proxy services unavailable. Note: the parent squid process started a new child process, so this attack only resulted in a temporary denial of service. (CVE-2008-1612)
Users of squid are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2008:0214. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(31840);
script_version("1.24");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2007-6239", "CVE-2008-1612");
script_bugtraq_id(28693);
script_xref(name:"RHSA", value:"2008:0214");
script_name(english:"RHEL 2.1 / 3 / 4 / 5 : squid (RHSA-2008:0214)");
script_summary(english:"Checks the rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Updated squid packages that fix a security issue are now available for
Red Hat Enterprise Linux 2.1, 3, 4 and 5.
This update has been rated as having moderate security impact by the
Red Hat Security Response Team.
Squid is a high-performance proxy caching server for Web clients,
supporting FTP, gopher, and HTTP data objects.
A flaw was found in the way squid manipulated HTTP headers for cached
objects stored in system memory. An attacker could use this flaw to
cause a squid child process to exit. This interrupted existing
connections and made proxy services unavailable. Note: the parent
squid process started a new child process, so this attack only
resulted in a temporary denial of service. (CVE-2008-1612)
Users of squid are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2008-1612"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2008:0214"
);
script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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_cwe_id(20);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:squid");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4.6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.1");
script_set_attribute(attribute:"vuln_publication_date", value:"2007/12/04");
script_set_attribute(attribute:"patch_publication_date", value:"2008/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2008/04/11");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2008-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(2\.1|3|4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.x / 4.x / 5.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2008:0214";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"squid-2.4.STABLE7-1.21as.12")) flag++;
if (rpm_check(release:"RHEL3", reference:"squid-2.5.STABLE3-9.3E")) flag++;
if (rpm_check(release:"RHEL4", reference:"squid-2.5.STABLE14-1.4E.el4_6.2")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"squid-2.6.STABLE6-5.el5_1.3")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"squid-2.6.STABLE6-5.el5_1.3")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"squid-2.6.STABLE6-5.el5_1.3")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | squid | p-cpe:/a:redhat:enterprise_linux:squid |
redhat | enterprise_linux | 2.1 | cpe:/o:redhat:enterprise_linux:2.1 |
redhat | enterprise_linux | 3 | cpe:/o:redhat:enterprise_linux:3 |
redhat | enterprise_linux | 4 | cpe:/o:redhat:enterprise_linux:4 |
redhat | enterprise_linux | 4.6 | cpe:/o:redhat:enterprise_linux:4.6 |
redhat | enterprise_linux | 5 | cpe:/o:redhat:enterprise_linux:5 |
redhat | enterprise_linux | 5.1 | cpe:/o:redhat:enterprise_linux:5.1 |