Debian: Security Advisory (DSA-5067-1)

# 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("1.3.6.1.4.1.25623.1.0.705067");
  script_cve_id("CVE-2021-41816", "CVE-2021-41817", "CVE-2021-41819");
  script_tag(name:"creation_date", value:"2022-02-05 02:00:13 +0000 (Sat, 05 Feb 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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:"2022-02-14 20:56:28 +0000 (Mon, 14 Feb 2022)");

  script_name("Debian: Security Advisory (DSA-5067-1)");
  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-5067-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2022/DSA-5067-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-5067");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/ruby2.7");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'ruby2.7' package(s) announced via the DSA-5067-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities have been discovered in the interpreter for the Ruby language and the Rubygems included, which may result in information disclosure or denial of service.

For the stable distribution (bullseye), these problems have been fixed in version 2.7.4-1+deb11u1.

We recommend that you upgrade your ruby2.7 packages.

For the detailed security status of ruby2.7 please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'ruby2.7' 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:"libruby2.7", ver:"2.7.4-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.7", ver:"2.7.4-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.7-dev", ver:"2.7.4-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ruby2.7-doc", ver:"2.7.4-1+deb11u1", rls:"DEB11"))) {
    report += res;
  }

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

exit(0);