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openvasCopyright (C) 2023 Greenbone AGOPENVAS:13614125623111120235570
HistoryDec 04, 2023 - 12:00 a.m.

Debian: Security Advisory (DSA-5570-1)

2023-12-0400:00:00
Copyright (C) 2023 Greenbone AG
plugins.openvas.org
9
debian 11
debian 12
nghttp2
http/2
denial of service
security upgrade

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

8.6

Confidence

High

EPSS

0.708

Percentile

98.1%

The remote host is missing an update for the Debian

# 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("1.3.6.1.4.1.25623.1.1.1.1.2023.5570");
  script_cve_id("CVE-2023-44487");
  script_tag(name:"creation_date", value:"2023-12-04 04:22:47 +0000 (Mon, 04 Dec 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:"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:"2023-10-13 19:32:37 +0000 (Fri, 13 Oct 2023)");

  script_name("Debian: Security Advisory (DSA-5570-1)");
  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=DEB(11|12)");

  script_xref(name:"Advisory-ID", value:"DSA-5570-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2023/DSA-5570-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-5570");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/nghttp2");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'nghttp2' package(s) announced via the DSA-5570-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that libnghttp2, a library implementing the HTTP/2 protocol, handled request cancellation incorrectly. This could result in denial of service.

For the oldstable distribution (bullseye), this problem has been fixed in version 1.43.0-1+deb11u1.

For the stable distribution (bookworm), this problem has been fixed in version 1.52.0-1+deb12u1.

We recommend that you upgrade your nghttp2 packages.

For the detailed security status of nghttp2 please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'nghttp2' package(s) on Debian 11, Debian 12.");

  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 == "DEB11") {

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-14", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-dev", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-doc", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-client", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-proxy", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-server", ver:"1.43.0-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

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

if(release == "DEB12") {

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-14", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-dev", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libnghttp2-doc", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-client", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-proxy", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"nghttp2-server", ver:"1.52.0-1+deb12u1", rls:"DEB12"))) {
    report += res;
  }

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

exit(0);

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

8.6

Confidence

High

EPSS

0.708

Percentile

98.1%