Ubuntu: Security Advisory (USN-2948-2)

# SPDX-FileCopyrightText: 2016 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("1.3.6.1.4.1.25623.1.0.842715");
  script_cve_id("CVE-2015-7566", "CVE-2015-7833", "CVE-2015-8812", "CVE-2016-0723", "CVE-2016-2085", "CVE-2016-2550", "CVE-2016-2782", "CVE-2016-2847");
  script_tag(name:"creation_date", value:"2016-04-12 03:16:52 +0000 (Tue, 12 Apr 2016)");
  script_version("2024-02-02T05:06:05+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:"2016-05-02 17:13:23 +0000 (Mon, 02 May 2016)");

  script_name("Ubuntu: Security Advisory (USN-2948-2)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 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=UBUNTU14\.04\ LTS");

  script_xref(name:"Advisory-ID", value:"USN-2948-2");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-2948-2");
  script_xref(name:"URL", value:"https://bugs.launchpad.net/bugs/1566726");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux-lts-utopic' package(s) announced via the USN-2948-2 advisory.");

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

  script_tag(name:"insight", value:"USN-2948-1 fixed vulnerabilities in the Ubuntu 14.10 Linux kernel
backported to Ubuntu 14.04 LTS. An incorrect reference counting
fix in the radeon driver introduced a regression that could cause a
system crash. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 Ralf Spenneberg discovered that the USB driver for Clie devices in the
 Linux kernel did not properly validate the endpoints reported by the
 device. An attacker with physical access could cause a denial of service
 (system crash). (CVE-2015-7566)

 Ralf Spenneberg discovered that the usbvision driver in the Linux kernel
 did not properly validate the interfaces and endpoints reported by the
 device. An attacker with physical access could cause a denial of service
 (system crash). (CVE-2015-7833)

 Venkatesh Pottem discovered a use-after-free vulnerability in the Linux
 kernel's CXGB3 driver. A local attacker could use this to cause a denial of
 service (system crash) or possibly execute arbitrary code. (CVE-2015-8812)

 It was discovered that a race condition existed in the ioctl handler for
 the TTY driver in the Linux kernel. A local attacker could use this to
 cause a denial of service (system crash) or expose sensitive information.
 (CVE-2016-0723)

 Xiaofei Rex Guo discovered a timing side channel vulnerability in the Linux
 Extended Verification Module (EVM). An attacker could use this to affect
 system integrity. (CVE-2016-2085)

 David Herrmann discovered that the Linux kernel incorrectly accounted file
 descriptors to the original opener for in-flight file descriptors sent over
 a unix domain socket. A local attacker could use this to cause a denial of
 service (resource exhaustion). (CVE-2016-2550)

 Ralf Spenneberg discovered that the USB driver for Treo devices in the
 Linux kernel did not properly validate the endpoints reported by the
 device. An attacker with physical access could cause a denial of service
 (system crash). (CVE-2016-2782)

 It was discovered that the Linux kernel did not enforce limits on the
 amount of data allocated to buffer pipes. A local attacker could use this
 to cause a denial of service (resource exhaustion). (CVE-2016-2847)");

  script_tag(name:"affected", value:"'linux-lts-utopic' package(s) on Ubuntu 14.04.");

  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 == "UBUNTU14.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-generic", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-generic-lpae", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-lowlatency", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-powerpc-e500mc", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-powerpc-smp", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-powerpc64-emb", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-3.16.0-70-powerpc64-smp", ver:"3.16.0-70.90~14.04.1", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

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

exit(0);