CVSS2
Attack Vector
NETWORK
Attack 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
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
AI Score
Confidence
High
EPSS
Percentile
87.3%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.704122");
script_cve_id("CVE-2018-1000024", "CVE-2018-1000027");
script_tag(name:"creation_date", value:"2018-02-22 23:00:00 +0000 (Thu, 22 Feb 2018)");
script_version("2024-02-02T05:06:06+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:06 +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:"2018-03-07 17:49:46 +0000 (Wed, 07 Mar 2018)");
script_name("Debian: Security Advisory (DSA-4122-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB(8|9)");
script_xref(name:"Advisory-ID", value:"DSA-4122-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2018/DSA-4122-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4122");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/squid3");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'squid3' package(s) announced via the DSA-4122-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities have been discovered in Squid3, a fully featured web proxy cache. The Common Vulnerabilities and Exposures project identifies the following issues:
CVE-2018-1000024
Louis Dion-Marcil discovered that Squid does not properly handle processing of certain ESI responses. A remote server delivering certain ESI response syntax can take advantage of this flaw to cause a denial of service for all clients accessing the Squid service. This problem is limited to the Squid custom ESI parser.
CVE-2018-1000027
Louis Dion-Marcil discovered that Squid is prone to a denial of service vulnerability when processing ESI responses or downloading intermediate CA certificates. A remote attacker can take advantage of this flaw to cause a denial of service for all clients accessing the Squid service.
For the oldstable distribution (jessie), these problems have been fixed in version 3.4.8-6+deb8u5.
For the stable distribution (stretch), these problems have been fixed in version 3.5.23-5+deb9u1.
We recommend that you upgrade your squid3 packages.
For the detailed security status of squid3 please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'squid3' package(s) on Debian 8, Debian 9.");
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-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB8") {
if(!isnull(res = isdpkgvuln(pkg:"squid-cgi", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid-purge", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid3", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid3-common", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid3-dbg", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squidclient", ver:"3.4.8-6+deb8u5", rls:"DEB8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"squid", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid-cgi", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid-common", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid-dbg", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid-purge", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squid3", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"squidclient", ver:"3.5.23-5+deb9u1", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
NETWORK
Attack 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
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
AI Score
Confidence
High
EPSS
Percentile
87.3%