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
7.6 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%
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("1.3.6.1.4.1.25623.1.0.892808");
script_cve_id("CVE-2021-3733", "CVE-2021-3737");
script_tag(name:"creation_date", value:"2021-11-06 02:00:15 +0000 (Sat, 06 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:"7.1");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
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:"2022-03-15 17:01:12 +0000 (Tue, 15 Mar 2022)");
script_name("Debian: Security Advisory (DLA-2808-1)");
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=DEB9");
script_xref(name:"Advisory-ID", value:"DLA-2808-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2808-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/python3.5");
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 'python3.5' package(s) announced via the DLA-2808-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"There were a couple of vulnerabilities found in src:python3.5, the Python interpreter v3.5, and are as follows:
CVE-2021-3733
The ReDoS-vulnerable regex has quadratic worst-case complexity and it allows cause a denial of service when identifying crafted invalid RFCs. This ReDoS issue is on the client side and needs remote attackers to control the HTTP server.
CVE-2021-3737
HTTP client can get stuck infinitely reading len(line) < 64k lines after receiving a 100 Continue HTTP response. This could lead to the client being a bandwidth sink for anyone in control of a server.
For Debian 9 stretch, these problems have been fixed in version 3.5.3-1+deb9u5.
We recommend that you upgrade your python3.5 packages.
For the detailed security status of python3.5 please refer to its security tracker page at: [link moved to references]
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:"'python3.5' package(s) on Debian 9.");
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 == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"idle-python3.5", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5-dbg", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5-dev", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5-minimal", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5-stdlib", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpython3.5-testsuite", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-dbg", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-dev", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-doc", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-examples", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-minimal", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python3.5-venv", ver:"3.5.3-1+deb9u5", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
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
7.6 High
AI Score
Confidence
High
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.016 Low
EPSS
Percentile
87.0%