CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.8%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.10.2021.0213");
script_cve_id("CVE-2021-3516", "CVE-2021-3517", "CVE-2021-3518", "CVE-2021-3537");
script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
script_version("2024-02-02T05:06:09+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-05-25 18:56:11 +0000 (Tue, 25 May 2021)");
script_name("Mageia: Security Advisory (MGASA-2021-0213)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("Mageia Linux Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA(7|8)");
script_xref(name:"Advisory-ID", value:"MGASA-2021-0213");
script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0213.html");
script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=28902");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/dla-2653");
script_xref(name:"URL", value:"https://lists.opensuse.org/archives/list/[email protected]/message/HLCJPB5W3FKJ7HO6DH6UVA3GP6IVZ37L/");
script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/[email protected]/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/");
script_tag(name:"summary", value:"The remote host is missing an update for the 'libxml2' package(s) announced via the MGASA-2021-0213 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"The updated packages fix security vulnerabilities:
Use-after-free in xmlEncodeEntitiesInternal() in entities.c.
(CVE-2021-3516)
Heap-based buffer overflow in xmlEncodeEntitiesInternal() in
entities.c. (CVE-2021-3517)
Use-after-free in xmlXIncludeDoProcess() in xinclude.c.
(CVE-2021-3518)
NULL pointer dereference in valid.c in xmlValidBuildAContentModel.
(CVE-2021-3537)");
script_tag(name:"affected", value:"'libxml2' package(s) on Mageia 7, Mageia 8.");
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-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "MAGEIA7") {
if(!isnull(res = isrpmvuln(pkg:"lib64xml2-devel", rpm:"lib64xml2-devel~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"lib64xml2_2", rpm:"lib64xml2_2~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2", rpm:"libxml2~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-devel", rpm:"libxml2-devel~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-python", rpm:"libxml2-python~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-python3", rpm:"libxml2-python3~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-utils", rpm:"libxml2-utils~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2_2", rpm:"libxml2_2~2.9.9~2.6.mga7", rls:"MAGEIA7"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "MAGEIA8") {
if(!isnull(res = isrpmvuln(pkg:"lib64xml2-devel", rpm:"lib64xml2-devel~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"lib64xml2_2", rpm:"lib64xml2_2~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2", rpm:"libxml2~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-devel", rpm:"libxml2-devel~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-python3", rpm:"libxml2-python3~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2-utils", rpm:"libxml2-utils~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"libxml2_2", rpm:"libxml2_2~2.9.10~7.1.mga8", rls:"MAGEIA8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
advisories.mageia.org/MGASA-2021-0213.html
bugs.mageia.org/show_bug.cgi?id=28902
lists.fedoraproject.org/archives/list/[email protected]/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
lists.opensuse.org/archives/list/[email protected]/message/HLCJPB5W3FKJ7HO6DH6UVA3GP6IVZ37L/
www.debian.org/lts/security/2021/dla-2653
MGASA-2021-0213
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
87.8%