Ubuntu: Security Advisory (USN-1130-1)

# SPDX-FileCopyrightText: 2011 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("1.3.6.1.4.1.25623.1.0.840659");
  script_cve_id("CVE-2011-1764");
  script_tag(name:"creation_date", value:"2011-05-17 13:58:48 +0000 (Tue, 17 May 2011)");
  script_version("2024-02-02T05:06:04+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:04 +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_name("Ubuntu: Security Advisory (USN-1130-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 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(10\.04\ LTS|10\.10|11\.04)");

  script_xref(name:"Advisory-ID", value:"USN-1130-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-1130-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'exim4' package(s) announced via the USN-1130-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that the Exim daemon did not correctly handle format
strings in DKIM headers. An unauthenticated remote attacker could send
specially crafted email to run arbitrary code as the Exim user. The
default compiler options for affected releases reduces the vulnerability
to a denial of service under most conditions.");

  script_tag(name:"affected", value:"'exim4' package(s) on Ubuntu 10.04, Ubuntu 10.10, Ubuntu 11.04.");

  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 == "UBUNTU10.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-custom", ver:"4.71-3ubuntu1.2", rls:"UBUNTU10.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.71-3ubuntu1.2", rls:"UBUNTU10.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.71-3ubuntu1.2", rls:"UBUNTU10.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU10.10") {

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-custom", ver:"4.72-1ubuntu1.2", rls:"UBUNTU10.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.72-1ubuntu1.2", rls:"UBUNTU10.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.72-1ubuntu1.2", rls:"UBUNTU10.10"))) {
    report += res;
  }

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

if(release == "UBUNTU11.04") {

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-custom", ver:"4.74-1ubuntu1.1", rls:"UBUNTU11.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-heavy", ver:"4.74-1ubuntu1.1", rls:"UBUNTU11.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"exim4-daemon-light", ver:"4.74-1ubuntu1.1", rls:"UBUNTU11.04"))) {
    report += res;
  }

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

exit(0);