Debian: Security Advisory (DSA-2863-1)

# SPDX-FileCopyrightText: 2014 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("1.3.6.1.4.1.25623.1.0.702863");
  script_cve_id("CVE-2013-4420");
  script_tag(name:"creation_date", value:"2014-02-17 23:00:00 +0000 (Mon, 17 Feb 2014)");
  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:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:P");

  script_name("Debian: Security Advisory (DSA-2863-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 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=DEB(6|7)");

  script_xref(name:"Advisory-ID", value:"DSA-2863-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2014/DSA-2863-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2863");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'libtar' package(s) announced via the DSA-2863-1 advisory.");

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

  script_tag(name:"insight", value:"A directory traversal attack was reported against libtar, a C library for manipulating tar archives. The application does not validate the filenames inside the tar archive, allowing to extract files in arbitrary path. An attacker can craft a tar file to override files beyond the tar_extract_glob and tar_extract_all prefix parameter.

For the oldstable distribution (squeeze), this problem has been fixed in version 1.2.11-6+deb6u2.

For the stable distribution (wheezy), this problem has been fixed in version 1.2.16-1+deb7u2.

For the unstable distribution (sid), this problem has been fixed in version 1.2.20-2.

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

  script_tag(name:"affected", value:"'libtar' package(s) on Debian 6, Debian 7.");

  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:"libtar", ver:"1.2.11-6+deb6u2", rls:"DEB6"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libtar-dev", ver:"1.2.11-6+deb6u2", rls:"DEB6"))) {
    report += res;
  }

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

if(release == "DEB7") {

  if(!isnull(res = isdpkgvuln(pkg:"libtar-dev", ver:"1.2.16-1+deb7u2", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libtar0", ver:"1.2.16-1+deb7u2", rls:"DEB7"))) {
    report += res;
  }

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

exit(0);