Mageia: Security Advisory (MGASA-2020-0238)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.10.2020.0238");
  script_cve_id("CVE-2020-0093", "CVE-2020-13112", "CVE-2020-13113", "CVE-2020-13114");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-06-01 18:34:05 +0000 (Mon, 01 Jun 2020)");

  script_name("Mageia: Security Advisory (MGASA-2020-0238)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA7");

  script_xref(name:"Advisory-ID", value:"MGASA-2020-0238");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2020-0238.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=26650");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2020/dla-2214");
  script_xref(name:"URL", value:"https://github.com/libexif/libexif/blob/libexif-0_6_22-release/NEWS");
  script_xref(name:"URL", value:"https://github.com/libexif/exif/blob/exif-0_6_22-release/NEWS");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'exif, libexif' package(s) announced via the MGASA-2020-0238 advisory.");

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

  script_tag(name:"insight", value:"The updated packages fix a security vulnerability:

In exif_data_save_data_entry of exif-data.c, there is a possible out of
bounds read due to a missing bounds check. This could lead to local
information disclosure with no additional execution privileges needed.
User interaction is needed for exploitation. (CVE-2020-0093)

exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero
error (CVE-2020-12767).

An issue was discovered in libexif before 0.6.22. Several buffer over-reads in
EXIF MakerNote handling could lead to information disclosure and crashes
(CVE-2020-13112).

An issue was discovered in libexif before 0.6.22. Use of uninitialized memory
in EXIF Makernote handling could lead to crashes and potential use-after-free
conditions (CVE-2020-13113).

An issue was discovered in libexif before 0.6.22. An unrestricted size in
handling Canon EXIF MakerNote data could lead to consumption of large amounts
of compute time for decoding EXIF data (CVE-2020-13114).

The libexif package has been updated to version 0.6.22, fixing these issues
and other bugs.

Also, the exif package has been updated to version 0.6.22. See the upstream
NEWS files for details.");

  script_tag(name:"affected", value:"'exif, libexif' package(s) on Mageia 7.");

  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-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "MAGEIA7") {

  if(!isnull(res = isrpmvuln(pkg:"exif", rpm:"exif~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64exif-devel", rpm:"lib64exif-devel~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64exif12", rpm:"lib64exif12~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libexif", rpm:"libexif~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libexif-devel", rpm:"libexif-devel~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libexif12", rpm:"libexif12~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libexif12-common", rpm:"libexif12-common~0.6.22~1.mga7", rls:"MAGEIA7"))) {
    report += res;
  }

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

exit(0);