Ubuntu: Security Advisory (USN-726-2)

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.63508");
  script_tag(name:"creation_date", value:"2009-03-07 20:47:03 +0000 (Sat, 07 Mar 2009)");
  script_version("2023-07-05T05:06:16+0000");
  script_tag(name:"last_modification", value:"2023-07-05 05:06:16 +0000 (Wed, 05 Jul 2023)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_name("Ubuntu: Security Advisory (USN-726-2)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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=UBUNTU8\.10");

  script_xref(name:"Advisory-ID", value:"USN-726-2");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-726-2");
  script_xref(name:"URL", value:"https://launchpad.net/bugs/337501");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'curl' package(s) announced via the USN-726-2 advisory.");

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

  script_tag(name:"insight", value:"USN-726-1 fixed a vulnerability in curl. Due to an incomplete fix, a regression
was introduced in Ubuntu 8.10 that caused certain types of URLs to fail. This
update fixes the problem. We apologize for the inconvenience.

Original advisory details:

 It was discovered that curl did not enforce any restrictions when following
 URL redirects. If a user or automated system were tricked into opening a URL to
 an untrusted server, an attacker could use redirects to gain access to arbitrary
 files. This update changes curl behavior to prevent following 'file' URLs after
 a redirect.");

  script_tag(name:"affected", value:"'curl' package(s) on Ubuntu 8.10.");

  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 == "UBUNTU8.10") {

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3", ver:"7.18.2-1ubuntu4.3", rls:"UBUNTU8.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.18.2-1ubuntu4.3", rls:"UBUNTU8.10"))) {
    report += res;
  }

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

exit(0);