5 Medium
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
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.7 High
AI Score
Confidence
High
0.027 Low
EPSS
Percentile
90.6%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.705009");
script_cve_id("CVE-2021-42340");
script_tag(name:"creation_date", value:"2021-11-14 02:00:06 +0000 (Sun, 14 Nov 2021)");
script_version("2024-02-02T05:06:07+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +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:3.1/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:"2021-10-20 17:22:51 +0000 (Wed, 20 Oct 2021)");
script_name("Debian: Security Advisory (DSA-5009-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 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=DEB11");
script_xref(name:"Advisory-ID", value:"DSA-5009-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2021/DSA-5009-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-5009");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/tomcat9");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'tomcat9' package(s) announced via the DSA-5009-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Apache Tomcat, the servlet and JSP engine, did not properly release an HTTP upgrade connection for WebSocket connections once the WebSocket connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.
For the stable distribution (bullseye), this problem has been fixed in version 9.0.43-2~deb11u3.
We recommend that you upgrade your tomcat9 packages.
For the detailed security status of tomcat9 please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'tomcat9' package(s) on Debian 11.");
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 == "DEB11") {
if(!isnull(res = isdpkgvuln(pkg:"libtomcat9-embed-java", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libtomcat9-java", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9-admin", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9-common", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9-docs", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9-examples", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat9-user", ver:"9.0.43-2~deb11u3", rls:"DEB11"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
5 Medium
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
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.7 High
AI Score
Confidence
High
0.027 Low
EPSS
Percentile
90.6%