Debian: Security Advisory (DSA-2663-1)

# SPDX-FileCopyrightText: 2013 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("1.3.6.1.4.1.25623.1.0.702663");
  script_cve_id("CVE-2013-1428");
  script_tag(name:"creation_date", value:"2013-04-21 22:00:00 +0000 (Sun, 21 Apr 2013)");
  script_version("2024-02-01T14:37:10+0000");
  script_tag(name:"last_modification", value:"2024-02-01 14:37:10 +0000 (Thu, 01 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:P");

  script_name("Debian: Security Advisory (DSA-2663-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2013 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:"DSA-2663-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2013/DSA-2663-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2663");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'tinc' package(s) announced via the DSA-2663-1 advisory.");

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

  script_tag(name:"insight", value:"Martin Schobert discovered a stack-based vulnerability in tinc, a Virtual Private Network (VPN) daemon.

When packets are forwarded via TCP, packet length is not checked against the stack buffer length. Authenticated peers could use this to crash the tinc daemon and maybe execute arbitrary code.

Note that on Wheezy and Sid, tinc is built using hardening flags and especially stack smashing protection, which should help protect against arbitrary code execution.

For the stable distribution (squeeze), this problem has been fixed in version 1.0.13-1+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in version 1.0.19-3.

For the unstable distribution (sid), this problem has been fixed in version 1.0.19-3.

We recommend that you upgrade your tinc packages.");

  script_tag(name:"affected", value:"'tinc' 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:"tinc", ver:"1.0.13-1+squeeze1", rls:"DEB6"))) {
    report += res;
  }

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

exit(0);