Debian: Security Advisory (DLA-155-1)

# 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("1.3.6.1.4.1.25623.1.1.1.2.2015.155");
  script_cve_id("CVE-2013-6885", "CVE-2014-7822", "CVE-2014-8133", "CVE-2014-8134", "CVE-2014-8160", "CVE-2014-9420", "CVE-2014-9584", "CVE-2014-9585", "CVE-2015-1421", "CVE-2015-1593");
  script_tag(name:"creation_date", value:"2023-03-08 12:56:44 +0000 (Wed, 08 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:"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:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2015-03-16 14:19:01 +0000 (Mon, 16 Mar 2015)");

  script_name("Debian: Security Advisory (DLA-155-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB6");

  script_xref(name:"Advisory-ID", value:"DLA-155-1");
  script_xref(name:"URL", value:"https://www.debian.org/lts/security/2015/DLA-155-1");
  script_xref(name:"URL", value:"http://support.amd.com/TechDocs/51810_16h_00h-0Fh_Rev_Guide.pdf");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'linux-2.6' package(s) announced via the DLA-155-1 advisory.");

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

  script_tag(name:"insight", value:"This update fixes the CVEs described below.

A further issue, CVE-2014-9419, was considered, but appears to require extensive changes with a consequent high risk of regression. It is now unlikely to be fixed in squeeze-lts.

CVE-2013-6885

It was discovered that under specific circumstances, a combination of write operations to write-combined memory and locked CPU instructions may cause a core hang on AMD 16h 00h through 0Fh processors. A local user can use this flaw to mount a denial of service (system hang) via a crafted application.

For more information please refer to the AMD CPU erratum 793 in [link moved to references]

CVE-2014-7822

It was found that the splice() system call did not validate the given file offset and length. A local unprivileged user can use this flaw to cause filesystem corruption on ext4 filesystems, or possibly other effects.

CVE-2014-8133

It was found that the espfix functionality can be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks for) and using it for stack. A local unprivileged user could potentially use this flaw to leak kernel stack addresses.

CVE-2014-8134

It was found that the espfix functionality is wrongly disabled in a 32-bit KVM guest. A local unprivileged user could potentially use this flaw to leak kernel stack addresses.

CVE-2014-8160

It was found that a netfilter (iptables or ip6tables) rule accepting packets to a specific SCTP, DCCP, GRE or UDPlite port/endpoint could result in incorrect connection tracking state. If only the generic connection tracking module (nf_conntrack) was loaded, and not the protocol-specific connection tracking module, this would allow access to any port/endpoint of the specified protocol.

CVE-2014-9420

It was found that the ISO-9660 filesystem implementation (isofs) follows arbitrarily long chains, including loops, of Continuation Entries (CEs). This allows local users to mount a denial of service via a crafted disc image.

CVE-2014-9584

It was found that the ISO-9660 filesystem implementation (isofs) does not validate a length value in the Extensions Reference (ER) System Use Field, which allows local users to obtain sensitive information from kernel memory via a crafted disc image.

CVE-2014-9585

It was discovered that address randomisation for the vDSO in 64-bit processes is extremely biassed. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism.

CVE-2015-1421

It was found that the SCTP implementation could free authentication state while it was still in use, resulting in heap corruption. This could allow remote users to cause a denial of service or privilege escalation.

CVE-2015-1593

It was found that address randomisation for the initial stack in 64-bit processes was limited to 20 rather than 22 bits of entropy. A local unprivileged user could potentially use this flaw to bypass the ASLR ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'linux-2.6' package(s) on Debian 6.");

  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 == "DEB6") {

  if(!isnull(res = isdpkgvuln(pkg:"firmware-linux-free", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-base", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-doc-2.6.32", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-486", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-686-bigmem", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-all", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-all-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-all-i386", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-common", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-common-openvz", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-common-vserver", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-common-xen", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-openvz-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-openvz-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-vserver-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-vserver-686-bigmem", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-vserver-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-xen-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-headers-2.6.32-5-xen-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-486", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-686-bigmem", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-686-bigmem-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-amd64-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-openvz-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-openvz-686-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-openvz-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-openvz-amd64-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-vserver-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-vserver-686-bigmem", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-vserver-686-bigmem-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-vserver-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-vserver-amd64-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-xen-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-xen-686-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-xen-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-2.6.32-5-xen-amd64-dbg", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-libc-dev", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-manual-2.6.32", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-patch-debian-2.6.32", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-source-2.6.32", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-support-2.6.32-5", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-tools-2.6.32", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"xen-linux-system-2.6.32-5-xen-686", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"xen-linux-system-2.6.32-5-xen-amd64", ver:"2.6.32-48squeeze11", rls:"DEB6"))) {
    report += res;
  }

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

exit(0);