Debian: Security Advisory (DSA-4936-1)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.704936");
  script_cve_id("CVE-2021-22918");
  script_tag(name:"creation_date", value:"2021-07-07 03:00:08 +0000 (Wed, 07 Jul 2021)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 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_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-20 17:57:57 +0000 (Tue, 20 Jul 2021)");

  script_name("Debian: Security Advisory (DSA-4936-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB10");

  script_xref(name:"Advisory-ID", value:"DSA-4936-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2021/DSA-4936-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4936");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/libuv1");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'libuv1' package(s) announced via the DSA-4936-1 advisory.");

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

  script_tag(name:"insight", value:"An out-of-bounds read was discovered in the uv__idna_to_ascii() function of Libuv, an asynchronous event notification library, which could result in denial of service or information disclosure.

For the stable distribution (buster), this problem has been fixed in version 1.24.1-1+deb10u1.

We recommend that you upgrade your libuv1 packages.

For the detailed security status of libuv1 please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'libuv1' package(s) on Debian 10.");

  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-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB10") {

  if(!isnull(res = isdpkgvuln(pkg:"libuv1", ver:"1.24.1-1+deb10u1", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libuv1-dev", ver:"1.24.1-1+deb10u1", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);