Debian: Security Advisory (DLA-3410-1)

# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.1.2.2023.3410");
  script_cve_id("CVE-2023-1668");
  script_tag(name:"creation_date", value:"2023-05-01 04:27:16 +0000 (Mon, 01 May 2023)");
  script_version("2024-02-02T05:06:10+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:10 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-04-21 15:38:37 +0000 (Fri, 21 Apr 2023)");

  script_name("Debian: Security Advisory (DLA-3410-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 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:"DLA-3410-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2023/DLA-3410-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/openvswitch");
  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 'openvswitch' package(s) announced via the DLA-3410-1 advisory.");

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

  script_tag(name:"insight", value:"David Marchand discovered that Open vSwitch, a multilayer, software-based, Ethernet virtual switch, was vulnerable to crafted IP packets with ip proto set to 0, potentially causing a denial of service.

Triggering the vulnerability requires an attacker to send a crafted IP packet with protocol field set to 0 and the flow rules to contain set actions on other fields in the IP protocol header. The resulting flows will omit required actions, and fail to mask the IP protocol field, resulting in a large bucket which captures all IP packets.

For Debian 10 buster, this problem has been fixed in version 2.10.7+ds1-0+deb10u4.

We recommend that you upgrade your openvswitch packages.

For the detailed security status of openvswitch 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:"'openvswitch' 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:"openvswitch-common", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-dbg", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-dev", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-pki", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-switch", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-testcontroller", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"openvswitch-vtep", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ovn-central", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ovn-controller-vtep", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ovn-host", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python-openvswitch", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"python3-openvswitch", ver:"2.10.7+ds1-0+deb10u4", rls:"DEB10"))) {
    report += res;
  }

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

exit(0);