Debian: Security Advisory (DSA-4951-1)

# 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("1.3.6.1.4.1.25623.1.0.704951");
  script_cve_id("CVE-2020-26558", "CVE-2020-27153", "CVE-2021-0129");
  script_tag(name:"creation_date", value:"2021-08-08 03:00:09 +0000 (Sun, 08 Aug 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:"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:L/I:L/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-10-20 20:11:31 +0000 (Tue, 20 Oct 2020)");

  script_name("Debian: Security Advisory (DSA-4951-1)");
  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-4951-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2021/DSA-4951-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4951");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/bluez");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'bluez' package(s) announced via the DSA-4951-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in Bluez, the Linux Bluetooth protocol stack.

CVE-2020-26558

/ CVE-2021-0129

It was discovered that Bluez does not properly check permissions during pairing operation, which could allow an attacker to impersonate the initiating device.

CVE-2020-27153

Jay LV discovered a double free flaw in the disconnect_cb() routine in the gattool. A remote attacker can take advantage of this flaw during service discovery for denial of service, or potentially, execution of arbitrary code.

For the stable distribution (buster), these problems have been fixed in version 5.50-1.2~deb10u2.

We recommend that you upgrade your bluez packages.

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

  script_tag(name:"affected", value:"'bluez' 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:"bluetooth", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez-cups", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez-hcidump", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez-obexd", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez-test-scripts", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"bluez-test-tools", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libbluetooth-dev", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libbluetooth3", ver:"5.50-1.2~deb10u2", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);