Debian: Security Advisory (DSA-4652-1)

# 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("1.3.6.1.4.1.25623.1.0.704652");
  script_cve_id("CVE-2020-11501");
  script_tag(name:"creation_date", value:"2020-04-05 03:00:11 +0000 (Sun, 05 Apr 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:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-04-22 18:01:09 +0000 (Wed, 22 Apr 2020)");

  script_name("Debian: Security Advisory (DSA-4652-1)");
  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-4652-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2020/DSA-4652-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4652");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/gnutls28");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'gnutls28' package(s) announced via the DSA-4652-1 advisory.");

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

  script_tag(name:"insight", value:"A flaw was reported in the DTLS protocol implementation in GnuTLS, a library implementing the TLS and SSL protocols. The DTLS client would not contribute any randomness to the DTLS negotiation, breaking the security guarantees of the DTLS protocol.

For the stable distribution (buster), this problem has been fixed in version 3.6.7-4+deb10u3.

We recommend that you upgrade your gnutls28 packages.

For the detailed security status of gnutls28 please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'gnutls28' 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:"gnutls-bin", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"gnutls-doc", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgnutls-dane0", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgnutls-openssl27", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgnutls28-dev", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgnutls30", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgnutlsxx28", ver:"3.6.7-4+deb10u3", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);