Huawei EulerOS: Security Advisory for perl (EulerOS-SA-2025-2592)

# SPDX-FileCopyrightText: 2025 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("1.3.6.1.4.1.25623.1.1.2.2025.2592");
  script_cve_id("CVE-2025-40909");
  script_tag(name:"creation_date", value:"2025-12-19 04:38:02 +0000 (Fri, 19 Dec 2025)");
  script_version("2025-12-19T05:45:49+0000");
  script_tag(name:"last_modification", value:"2025-12-19 05:45:49 +0000 (Fri, 19 Dec 2025)");
  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 perl (EulerOS-SA-2025-2592)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2025 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=EULEROSVIRT\-2\.13\.0");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2025-2592");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2025-2592");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'perl' package(s) announced via the EulerOS-SA-2025-2592 advisory.");

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

  script_tag(name:"insight", value:"Perl threads have a working directory race condition where file operations may target unintended paths.If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit.The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6(CVE-2025-40909)");

  script_tag(name:"affected", value:"'perl' package(s) on Huawei EulerOS Virtualization release 2.13.0.");

  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 == "EULEROSVIRT-2.13.0") {

  if(!isnull(res = isrpmvuln(pkg:"perl", rpm:"perl~5.34.0~13.h5.eulerosv2r13", rls:"EULEROSVIRT-2.13.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perl-libs", rpm:"perl-libs~5.34.0~13.h5.eulerosv2r13", rls:"EULEROSVIRT-2.13.0"))) {
    report += res;
  }

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

exit(0);