Ubuntu: Security Advisory (USN-6965-1)

# 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("1.3.6.1.4.1.25623.1.1.12.2024.6965.1");
  script_cve_id("CVE-2021-3973", "CVE-2021-3974", "CVE-2021-3984", "CVE-2021-4019", "CVE-2021-4069");
  script_tag(name:"creation_date", value:"2024-08-21 10:36:07 +0000 (Wed, 21 Aug 2024)");
  script_version("2024-08-22T05:05:50+0000");
  script_tag(name:"last_modification", value:"2024-08-22 05:05:50 +0000 (Thu, 22 Aug 2024)");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2021-12-07 14:02:37 +0000 (Tue, 07 Dec 2021)");

  script_name("Ubuntu: Security Advisory (USN-6965-1)");
  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=UBUNTU14\.04\ LTS");

  script_xref(name:"Advisory-ID", value:"USN-6965-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-6965-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'vim' package(s) announced via the USN-6965-1 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 vim incorrectly handled parsing of filenames in its
search functionality. If a user was tricked into opening a specially
crafted file, an attacker could crash the application, leading to a denial
of service. (CVE-2021-3973)

It was discovered that vim incorrectly handled memory when opening and
searching the contents of certain files. If a user was tricked into opening
a specially crafted file, an attacker could crash the application, leading
to a denial of service, or possibly achieve code execution with user
privileges. (CVE-2021-3974)

It was discovered that vim incorrectly handled memory when opening and
editing certain files. If a user was tricked into opening a specially
crafted file, an attacker could crash the application, leading to a denial
of service, or possibly achieve code execution with user privileges.
(CVE-2021-3984, CVE-2021-4019, CVE-2021-4069)");

  script_tag(name:"affected", value:"'vim' package(s) on Ubuntu 14.04.");

  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 == "UBUNTU14.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"vim", ver:"2:7.4.052-1ubuntu3.1+esm17", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

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

exit(0);