Debian: Security Advisory (DLA-2388-1)

# 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("1.3.6.1.4.1.25623.1.0.892388");
  script_cve_id("CVE-2018-12404", "CVE-2018-18508", "CVE-2019-11719", "CVE-2019-11729", "CVE-2019-11745", "CVE-2019-17006", "CVE-2019-17007", "CVE-2020-12399", "CVE-2020-12400", "CVE-2020-12401", "CVE-2020-12402", "CVE-2020-12403", "CVE-2020-6829");
  script_tag(name:"creation_date", value:"2020-09-30 03:00:21 +0000 (Wed, 30 Sep 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:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-10-26 20:03:18 +0000 (Mon, 26 Oct 2020)");

  script_name("Debian: Security Advisory (DLA-2388-1)");
  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=DEB9");

  script_xref(name:"Advisory-ID", value:"DLA-2388-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2020/DLA-2388-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/nss");
  script_xref(name:"URL", value:"https://wiki.debian.org/LTS");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'nss' package(s) announced via the DLA-2388-1 advisory.");

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

  script_tag(name:"insight", value:"Various vulnerabilities were fixed in nss, the Network Security Service libraries.

CVE-2018-12404

Cache side-channel variant of the Bleichenbacher attack.

CVE-2018-18508

NULL pointer dereference in several CMS functions resulting in a denial of service.

CVE-2019-11719

Out-of-bounds read when importing curve25519 private key.

CVE-2019-11729

Empty or malformed p256-ECDH public keys may trigger a segmentation fault.

CVE-2019-11745

Out-of-bounds write when encrypting with a block cipher.

CVE-2019-17006

Some cryptographic primitives did not check the length of the input text, potentially resulting in overflows.

CVE-2019-17007

Handling of Netscape Certificate Sequences may crash with a NULL dereference leading to a denial of service.

CVE-2020-12399

Force a fixed length for DSA exponentiation.

CVE-2020-6829

CVE-2020-12400

Side channel attack on ECDSA signature generation.

CVE-2020-12401

ECDSA timing attack mitigation bypass.

CVE-2020-12402

Side channel vulnerabilities during RSA key generation.

CVE-2020-12403

CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read.

For Debian 9 stretch, these problems have been fixed in version 2:3.26.2-1.1+deb9u2.

We recommend that you upgrade your nss packages.

For the detailed security status of nss please refer to its security tracker page at: [link moved to references]

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");

  script_tag(name:"affected", value:"'nss' package(s) on Debian 9.");

  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 == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"libnss3", ver:"2:3.26.2-1.1+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnss3-dbg", ver:"2:3.26.2-1.1+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnss3-dev", ver:"2:3.26.2-1.1+deb9u2", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnss3-tools", ver:"2:3.26.2-1.1+deb9u2", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);