Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2022-1088)

# 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("1.3.6.1.4.1.25623.1.1.2.2022.1088");
  script_cve_id("CVE-2021-3711", "CVE-2021-3712");
  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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-08-31 16:37:28 +0000 (Tue, 31 Aug 2021)");

  script_name("Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2022-1088)");
  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-2022-1088");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-1088");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'openssl' package(s) announced via the EulerOS-SA-2022-1088 advisory.");

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

  script_tag(name:"insight", value:"A flaw was found in openssl. A miscalculation of a buffer size was found in openssl's SM2 decryption function, allowing up to 62 arbitrary bytes to be written outside of the buffer. A remote attacker could use this flaw to crash an application supporting SM2 signature or encryption algorithm, or, possibly, execute arbitrary code with the permissions of the user running that application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2021-3711)

It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to force an application into calling openssl function with a specially crafted, non-NUL terminated string to deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data confidentiality and system availability.(CVE-2021-3712)");

  script_tag(name:"affected", value:"'openssl' 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:"openssl", rpm:"openssl~1.1.1~3.h18.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssl-devel", rpm:"openssl-devel~1.1.1~3.h18.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssl-libs", rpm:"openssl-libs~1.1.1~3.h18.eulerosv2r8", rls:"EULEROSVIRTARM64-3.0.6.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssl-perl", rpm:"openssl-perl~1.1.1~3.h18.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);