8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.3%
The remote host is missing an update for the Debian
# 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("1.3.6.1.4.1.25623.1.0.893213");
script_cve_id("CVE-2022-42898");
script_tag(name:"creation_date", value:"2022-11-30 02:00:08 +0000 (Wed, 30 Nov 2022)");
script_version("2024-02-02T05:06:08+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:08 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"9.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-01-05 20:28:07 +0000 (Thu, 05 Jan 2023)");
script_name("Debian: Security Advisory (DLA-3213-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 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:"DLA-3213-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2022/DLA-3213-1");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'krb5' package(s) announced via the DLA-3213-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"It was discovered that there was a potential Denial of Service (DoS) attack against krb5, a suite of tools implementing the Kerberos authentication system. An integer overflow in PAC parsing could have been exploited if a cross-realm entity acted maliciously.
CVE-2022-42898
krb5_pac_parse() buffer parsing vulnerability
For Debian 10 Buster, this problem has been fixed in version 1.17-3+deb10u5.
We recommend that you upgrade your krb5 packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'krb5' 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:"krb5-admin-server", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-doc", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-gss-samples", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-k5tls", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-kpropd", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-locales", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-multidev", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-otp", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit11", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkadm5srv-mit11", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkdb5-9", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrad-dev", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrad0", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dbg", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dev", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.17-3+deb10u5", rls:"DEB10"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.3%