Debian: Security Advisory (DSA-5255-1)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.0.705255");
  script_cve_id("CVE-2022-3515");
  script_tag(name:"creation_date", value:"2022-10-19 01:00:10 +0000 (Wed, 19 Oct 2022)");
  script_version("2024-02-02T05:06:08+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:08 +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:"2023-01-20 20:08:35 +0000 (Fri, 20 Jan 2023)");

  script_name("Debian: Security Advisory (DSA-5255-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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=DEB11");

  script_xref(name:"Advisory-ID", value:"DSA-5255-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2022/DSA-5255-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-5255");
  script_xref(name:"URL", value:"https://gnupg.org/blog/20221017-pepe-left-the-ksba.html");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/libksba");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'libksba' package(s) announced via the DSA-5255-1 advisory.");

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

  script_tag(name:"insight", value:"An integer overflow flaw was discovered in the CRL parser in libksba, an X.509 and CMS support library, which could result in denial of service or the execution of arbitrary code.

Details can be found in the upstream advisory at [link moved to references]

For the stable distribution (bullseye), this problem has been fixed in version 1.5.0-3+deb11u1.

We recommend that you upgrade your libksba packages.

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

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

  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:"libksba-dev", ver:"1.5.0-3+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libksba-mingw-w64-dev", ver:"1.5.0-3+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libksba8", ver:"1.5.0-3+deb11u1", rls:"DEB11"))) {
    report += res;
  }

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

exit(0);