Amazon Linux: Security Advisory (ALAS-2015-521)

# SPDX-FileCopyrightText: 2015 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("1.3.6.1.4.1.25623.1.0.120059");
  script_cve_id("CVE-2013-2099");
  script_tag(name:"creation_date", value:"2015-09-08 11:16:29 +0000 (Tue, 08 Sep 2015)");
  script_version("2025-01-23T05:37:38+0000");
  script_tag(name:"last_modification", value:"2025-01-23 05:37:38 +0000 (Thu, 23 Jan 2025)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:P");

  script_name("Amazon Linux: Security Advisory (ALAS-2015-521)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Amazon Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/amazon_linux", "ssh/login/release");

  script_xref(name:"Advisory-ID", value:"ALAS-2015-521");
  script_xref(name:"URL", value:"https://alas.aws.amazon.com/ALAS-2015-521.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'python-tornado' package(s) announced via the ALAS-2015-521 advisory.");

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

  script_tag(name:"insight", value:"A denial of service flaw was found in the way Python's SSL module implementation performed matching of certain certificate names. A remote attacker able to obtain a valid certificate that contained multiple wildcard characters could use this flaw to issue a request to validate such a certificate, resulting in excessive consumption of CPU.");

  script_tag(name:"affected", value:"'python-tornado' package(s) on Amazon Linux.");

  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-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "AMAZON") {

  if(!isnull(res = isrpmvuln(pkg:"python-tornado", rpm:"python-tornado~2.2.1~7.7.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python26-tornado", rpm:"python26-tornado~2.2.1~7.7.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python26-tornado-doc", rpm:"python26-tornado-doc~2.2.1~7.7.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python27-tornado", rpm:"python27-tornado~2.2.1~7.7.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python27-tornado-doc", rpm:"python27-tornado-doc~2.2.1~7.7.amzn1", rls:"AMAZON"))) {
    report += res;
  }

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

exit(0);