Debian: Security Advisory (DSA-4644-1)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.0.704644");
  script_cve_id("CVE-2020-10592");
  script_tag(name:"creation_date", value:"2020-03-22 04:00:07 +0000 (Sun, 22 Mar 2020)");
  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:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-03-23 20:14:58 +0000 (Mon, 23 Mar 2020)");

  script_name("Debian: Security Advisory (DSA-4644-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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-4644-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4644-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4644");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/tor");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'tor' package(s) announced via the DSA-4644-1 advisory.");

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

  script_tag(name:"insight", value:"A denial of service vulnerability (by triggering high CPU consumption) was found in Tor, a connection-based low-latency anonymous communication system.

For the stable distribution (buster), this problem has been fixed in version 0.3.5.10-1.

For the oldstable distribution (stretch), support for tor is now discontinued. Please upgrade to the stable release (buster) to continue receiving tor updates.

We recommend that you upgrade your tor packages.

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

  script_tag(name:"affected", value:"'tor' 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:"tor", ver:"0.3.5.10-1", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"tor-geoipdb", ver:"0.3.5.10-1", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);