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HistoryMar 05, 2024 - 12:00 a.m.

Ubuntu: Security Advisory (USN-6673-1)

2024-03-0500:00:00
Copyright (C) 2024 Greenbone AG
plugins.openvas.org
6
ubuntu
python-cryptography
security vulnerabilities
cve-2023-50782
cve-2024-26130
openssl
pkcs#12
ubuntu 18.04
ubuntu 20.04
ubuntu 22.04
ubuntu 23.10

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

8.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.1%

The remote host is missing an update for the

# SPDX-FileCopyrightText: 2024 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("1.3.6.1.4.1.25623.1.1.12.2024.6673.1");
  script_cve_id("CVE-2023-50782", "CVE-2024-26130");
  script_tag(name:"creation_date", value:"2024-03-05 04:08:40 +0000 (Tue, 05 Mar 2024)");
  script_version("2024-03-05T05:05:54+0000");
  script_tag(name:"last_modification", value:"2024-03-05 05:05:54 +0000 (Tue, 05 Mar 2024)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-02-14 17:52:10 +0000 (Wed, 14 Feb 2024)");

  script_name("Ubuntu: Security Advisory (USN-6673-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(18\.04\ LTS|20\.04\ LTS|22\.04\ LTS|23\.10)");

  script_xref(name:"Advisory-ID", value:"USN-6673-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6673-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'python-cryptography' package(s) announced via the USN-6673-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Hubert Kario discovered that python-cryptography incorrectly handled
errors returned by the OpenSSL API when processing incorrect padding in
RSA PKCS#1 v1.5. A remote attacker could possibly use this issue to expose
confidential or sensitive information. (CVE-2023-50782)

It was discovered that python-cryptography incorrectly handled memory
operations when processing mismatched PKCS#12 keys. A remote attacker could
possibly use this issue to cause python-cryptography to crash, leading to a
denial of service. This issue only affected Ubuntu 23.10. (CVE-2024-26130)");

  script_tag(name:"affected", value:"'python-cryptography' package(s) on Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 23.10.");

  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 == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"python-cryptography", ver:"2.1.4-1ubuntu1.4+esm1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python3-cryptography", ver:"2.1.4-1ubuntu1.4+esm1", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU20.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"python-cryptography", ver:"2.8-3ubuntu0.3", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python3-cryptography", ver:"2.8-3ubuntu0.3", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU22.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"python3-cryptography", ver:"3.4.8-1ubuntu2.2", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU23.10") {

  if(!isnull(res = isdpkgvuln(pkg:"python3-cryptography", ver:"38.0.4-4ubuntu0.23.10.2", rls:"UBUNTU23.10"))) {
    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

8.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.1%