Mageia: Security Advisory (MGASA-2021-0522)

# 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("1.3.6.1.4.1.25623.1.1.10.2021.0522");
  script_cve_id("CVE-2021-41159", "CVE-2021-41160");
  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:"6.8");
  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:N/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:"2021-11-04 16:35:21 +0000 (Thu, 04 Nov 2021)");

  script_name("Mageia: Security Advisory (MGASA-2021-0522)");
  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=MAGEIA8");

  script_xref(name:"Advisory-ID", value:"MGASA-2021-0522");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2021-0522.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=29654");
  script_xref(name:"URL", value:"https://access.redhat.com/errata/RHSA-2021:4622");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'freerdp' package(s) announced via the MGASA-2021-0522 advisory.");

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

  script_tag(name:"insight", value:"All FreeRDP clients prior to version 2.4.1 using gateway connections
('/gt:rpc') fail to validate input data. A malicious gateway might allow
client memory to be written out of bounds. This issue has been resolved in
version 2.4.1. If you are unable to update then use `/gt:http` rather than
/gt:rdp connections if possible or use a direct connection without a
gateway. (CVE-2021-41159)

In affected versions a malicious server might trigger out of bound writes
in a connected client. Connections using GDI or SurfaceCommands to send
graphics updates to the client might send `0` width/height or out of bound
rectangles to trigger out of bound writes. With `0` width or height the
memory allocation will be `0` but the missing bounds checks allow writing
to the pointer at this (not allocated) region. This issue has been patched
in FreeRDP 2.4.1. (CVE-2021-41160)");

  script_tag(name:"affected", value:"'freerdp' package(s) on Mageia 8.");

  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 == "MAGEIA8") {

  if(!isnull(res = isrpmvuln(pkg:"freerdp", rpm:"freerdp~2.2.0~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64freerdp-devel", rpm:"lib64freerdp-devel~2.2.0~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64freerdp2", rpm:"lib64freerdp2~2.2.0~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libfreerdp-devel", rpm:"libfreerdp-devel~2.2.0~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libfreerdp2", rpm:"libfreerdp2~2.2.0~1.1.mga8", rls:"MAGEIA8"))) {
    report += res;
  }

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

exit(0);