Huawei EulerOS: Security Advisory for gnutls (EulerOS-SA-2024-1834)

# SPDX-FileCopyrightText: 2024 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("1.3.6.1.4.1.25623.1.1.2.2024.1834");
  script_cve_id("CVE-2024-28834", "CVE-2024-28835");
  script_tag(name:"creation_date", value:"2024-06-25 04:14:08 +0000 (Tue, 25 Jun 2024)");
  script_version("2024-06-25T05:05:27+0000");
  script_tag(name:"last_modification", value:"2024-06-25 05:05:27 +0000 (Tue, 25 Jun 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_name("Huawei EulerOS: Security Advisory for gnutls (EulerOS-SA-2024-1834)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 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=EULEROS\-2\.0SP11\-X86_64");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2024-1834");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2024-1834");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'gnutls' package(s) announced via the EulerOS-SA-2024-1834 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 GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel.(CVE-2024-28834)

A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the 'certtool --verify-chain' command.(CVE-2024-28835)");

  script_tag(name:"affected", value:"'gnutls' package(s) on Huawei EulerOS V2.0SP11(x86_64).");

  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 == "EULEROS-2.0SP11-x86_64") {

  if(!isnull(res = isrpmvuln(pkg:"gnutls", rpm:"gnutls~3.7.2~2.h30.eulerosv2r11", rls:"EULEROS-2.0SP11-x86_64"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"gnutls-utils", rpm:"gnutls-utils~3.7.2~2.h30.eulerosv2r11", rls:"EULEROS-2.0SP11-x86_64"))) {
    report += res;
  }

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

exit(0);