Ubuntu: Security Advisory (USN-4964-1)

# 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("1.3.6.1.4.1.25623.1.0.844953");
  script_cve_id("CVE-2021-29463", "CVE-2021-29464", "CVE-2021-29473", "CVE-2021-29623", "CVE-2021-32617");
  script_tag(name:"creation_date", value:"2021-05-26 03:00:29 +0000 (Wed, 26 May 2021)");
  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:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  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:"2021-05-10 15:31:36 +0000 (Mon, 10 May 2021)");

  script_name("Ubuntu: Security Advisory (USN-4964-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 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(16\.04\ LTS|18\.04\ LTS|20\.04\ LTS|20\.10|21\.04)");

  script_xref(name:"Advisory-ID", value:"USN-4964-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-4964-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'exiv2' package(s) announced via the USN-4964-1 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 Exiv2 incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04.
(CVE-2021-29463)

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04.
(CVE-2021-29464)

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2021-29473, CVE-2021-32617)

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this issue to expose sensitive information.
This issue only affected Ubuntu 20.04 LTS, Ubuntu 20.10 and Ubuntu 21.04.
(CVE-2021-29623)");

  script_tag(name:"affected", value:"'exiv2' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10, Ubuntu 21.04.");

  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 == "UBUNTU16.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"exiv2", ver:"0.25-2.1ubuntu16.04.7+esm2", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libexiv2-14", ver:"0.25-2.1ubuntu16.04.7+esm2", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"exiv2", ver:"0.25-3.1ubuntu0.18.04.9", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libexiv2-14", ver:"0.25-3.1ubuntu0.18.04.9", 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:"exiv2", ver:"0.27.2-8ubuntu2.4", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libexiv2-27", ver:"0.27.2-8ubuntu2.4", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU20.10") {

  if(!isnull(res = isdpkgvuln(pkg:"exiv2", ver:"0.27.3-3ubuntu0.4", rls:"UBUNTU20.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libexiv2-27", ver:"0.27.3-3ubuntu0.4", rls:"UBUNTU20.10"))) {
    report += res;
  }

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

if(release == "UBUNTU21.04") {

  if(!isnull(res = isdpkgvuln(pkg:"exiv2", ver:"0.27.3-3ubuntu1.3", rls:"UBUNTU21.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libexiv2-27", ver:"0.27.3-3ubuntu1.3", rls:"UBUNTU21.04"))) {
    report += res;
  }

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

exit(0);