CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
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
AI Score
Confidence
High
EPSS
Percentile
94.0%
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("1.3.6.1.4.1.25623.1.0.704635");
script_cve_id("CVE-2020-9273");
script_tag(name:"creation_date", value:"2020-02-27 04:00:07 +0000 (Thu, 27 Feb 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:"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:"2020-02-21 18:44:00 +0000 (Fri, 21 Feb 2020)");
script_name("Debian: Security Advisory (DSA-4635-1)");
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=DEB(10|9)");
script_xref(name:"Advisory-ID", value:"DSA-4635-1");
script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4635-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4635");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/proftpd-dfsg");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'proftpd-dfsg' package(s) announced via the DSA-4635-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Antonio Morales discovered an use-after-free flaw in the memory pool allocator in ProFTPD, a powerful modular FTP/SFTP/FTPS server. Interrupting current data transfers can corrupt the ProFTPD memory pool, leading to denial of service, or potentially the execution of arbitrary code.
For the oldstable distribution (stretch), this problem has been fixed in version 1.3.5b-4+deb9u4.
For the stable distribution (buster), this problem has been fixed in version 1.3.6-4+deb10u4.
We recommend that you upgrade your proftpd-dfsg packages.
For the detailed security status of proftpd-dfsg please refer to its security tracker page at: [link moved to references]");
script_tag(name:"affected", value:"'proftpd-dfsg' package(s) on Debian 9, 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:"proftpd-basic", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-dev", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-doc", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-geoip", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-ldap", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-mysql", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-odbc", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-pgsql", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-snmp", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-sqlite", ver:"1.3.6-4+deb10u4", rls:"DEB10"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"proftpd-basic", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-dev", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-doc", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-geoip", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-ldap", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-mysql", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-odbc", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-pgsql", ver:"1.3.5b-4+deb9u4", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"proftpd-mod-sqlite", ver:"1.3.5b-4+deb9u4", 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
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
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
AI Score
Confidence
High
EPSS
Percentile
94.0%