CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
73.0%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.0.704810");
script_cve_id("CVE-2020-27783");
script_tag(name:"creation_date", value:"2020-12-15 04:00:10 +0000 (Tue, 15 Dec 2020)");
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:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-12-04 22:11:10 +0000 (Fri, 04 Dec 2020)");
script_name("Debian: Security Advisory (DSA-4810-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 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=DEB10");
script_xref(name:"Advisory-ID", value:"DSA-4810-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4810-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4810");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/lxml");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'lxml' package(s) announced via the DSA-4810-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Yaniv Nizry discovered that the clean module of lxml, Python bindings for libxml2 and libxslt could be bypassed.
For the stable distribution (buster), this problem has been fixed in version 4.3.2-1+deb10u1.
We recommend that you upgrade your lxml packages.
For the detailed security status of lxml please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'lxml' package(s) on Debian 10.");
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 == "DEB10") {
if(!isnull(res = isdpkgvuln(pkg:"python-lxml", ver:"4.3.2-1+deb10u1", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python-lxml-dbg", ver:"4.3.2-1+deb10u1", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python-lxml-doc", ver:"4.3.2-1+deb10u1", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3-lxml", ver:"4.3.2-1+deb10u1", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3-lxml-dbg", ver:"4.3.2-1+deb10u1", rls:"DEB10"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
73.0%