Ubuntu: Security Advisory (USN-5964-1)

# 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("1.3.6.1.4.1.25623.1.1.12.2023.5964.1");
  script_cve_id("CVE-2023-27533", "CVE-2023-27534", "CVE-2023-27535", "CVE-2023-27536", "CVE-2023-27538");
  script_tag(name:"creation_date", value:"2023-03-21 04:11:23 +0000 (Tue, 21 Mar 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:"9.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-04-07 16:23:46 +0000 (Fri, 07 Apr 2023)");

  script_name("Ubuntu: Security Advisory (USN-5964-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(18\.04\ LTS|20\.04\ LTS|22\.04\ LTS|22\.10)");

  script_xref(name:"Advisory-ID", value:"USN-5964-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-5964-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'curl' package(s) announced via the USN-5964-1 advisory.");

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

  script_tag(name:"insight", value:"Harry Sintonen discovered that curl incorrectly handled certain TELNET
connection options. Due to lack of proper input scrubbing, curl could pass
on user name and telnet options to the server as provided, contrary to
expectations. (CVE-2023-27533)

Harry Sintonen discovered that curl incorrectly handled special tilde
characters when used with SFTP paths. A remote attacker could possibly use
this issue to circumvent filtering. (CVE-2023-27534)

Harry Sintonen discovered that curl incorrectly reused certain FTP
connections. This could lead to the wrong credentials being reused,
contrary to expectations. (CVE-2023-27535)

Harry Sintonen discovered that curl incorrectly reused connections when the
GSS delegation option had been changed. This could lead to the option being
reused, contrary to expectations. (CVE-2023-27536)

Harry Sintonen discovered that curl incorrectly reused certain SSH
connections. This could lead to the wrong credentials being reused,
contrary to expectations. (CVE-2023-27538)");

  script_tag(name:"affected", value:"'curl' package(s) on Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 22.10.");

  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 == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"curl", ver:"7.58.0-2ubuntu3.24", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.58.0-2ubuntu3.24", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.58.0-2ubuntu3.24", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl4", ver:"7.58.0-2ubuntu3.24", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU20.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"curl", ver:"7.68.0-1ubuntu2.18", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.68.0-1ubuntu2.18", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.68.0-1ubuntu2.18", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl4", ver:"7.68.0-1ubuntu2.18", rls:"UBUNTU20.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU22.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"curl", ver:"7.81.0-1ubuntu1.10", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.81.0-1ubuntu1.10", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.81.0-1ubuntu1.10", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl4", ver:"7.81.0-1ubuntu1.10", rls:"UBUNTU22.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU22.10") {

  if(!isnull(res = isdpkgvuln(pkg:"curl", ver:"7.85.0-1ubuntu0.5", rls:"UBUNTU22.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.85.0-1ubuntu0.5", rls:"UBUNTU22.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.85.0-1ubuntu0.5", rls:"UBUNTU22.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl4", ver:"7.85.0-1ubuntu0.5", rls:"UBUNTU22.10"))) {
    report += res;
  }

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

exit(0);