Huawei EulerOS: Security Advisory for zstd (EulerOS-SA-2022-1104)

# 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("1.3.6.1.4.1.25623.1.1.2.2022.1104");
  script_cve_id("CVE-2021-24031", "CVE-2021-24032");
  script_tag(name:"creation_date", value:"2022-02-13 03:23:50 +0000 (Sun, 13 Feb 2022)");
  script_version("2024-02-05T14:36:56+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:56 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-04-14 15:28:44 +0000 (Wed, 14 Apr 2021)");

  script_name("Huawei EulerOS: Security Advisory for zstd (EulerOS-SA-2022-1104)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROSVIRTARM64\-3\.0\.6\.0");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-1104");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-1104");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'zstd' package(s) announced via the EulerOS-SA-2022-1104 advisory.");

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

  script_tag(name:"insight", value:"In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.(CVE-2021-24031)

Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.(CVE-2021-24032)");

  script_tag(name:"affected", value:"'zstd' package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.6.0.");

  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 == "EULEROSVIRTARM64-3.0.6.0") {

  if(!isnull(res = isrpmvuln(pkg:"libzstd", rpm:"libzstd~1.3.6~1.h1.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libzstd-devel", rpm:"libzstd-devel~1.3.6~1.h1.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"zstd", rpm:"zstd~1.3.6~1.h1.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

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

exit(0);