Debian: Security Advisory (DSA-975-1)

# SPDX-FileCopyrightText: 2008 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("1.3.6.1.4.1.25623.1.0.56278");
  script_cve_id("CVE-2006-0043");
  script_tag(name:"creation_date", value:"2008-01-17 22:07:13 +0000 (Thu, 17 Jan 2008)");
  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:"4.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_name("Debian: Security Advisory (DSA-975-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2008 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(3\.0|3\.1)");

  script_xref(name:"Advisory-ID", value:"DSA-975-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2006/DSA-975-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-975");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'nfs-user-server' package(s) announced via the DSA-975-1 advisory.");

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

  script_tag(name:"insight", value:"Marcus Meissner discovered that attackers can trigger a buffer overflow in the path handling code by creating or abusing existing symlinks, which may lead to the execution of arbitrary code.

This vulnerability isn't present in the kernel NFS server.

This update includes a bugfix for attribute handling of symlinks. This fix does not have security implications, but at the time when this DSA was prepared it was already queued for the next stable point release, so we decided to include it beforehand.

For the old stable distribution (woody) this problem has been fixed in version 2.2beta47-12woody1.

For the stable distribution (sarge) this problem has been fixed in version 2.2beta47-20sarge2.

For the unstable distribution (sid) this problem has been fixed in version 2.2beta47-22.

We recommend that you upgrade your nfs-user-server package.");

  script_tag(name:"affected", value:"'nfs-user-server' package(s) on Debian 3.0, Debian 3.1.");

  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 == "DEB3.0") {

  if(!isnull(res = isdpkgvuln(pkg:"nfs-user-server", ver:"2.2beta47-12woody1", rls:"DEB3.0"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ugidd", ver:"2.2beta47-12woody1", rls:"DEB3.0"))) {
    report += res;
  }

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

if(release == "DEB3.1") {

  if(!isnull(res = isdpkgvuln(pkg:"nfs-user-server", ver:"2.2beta47-20sarge2", rls:"DEB3.1"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ugidd", ver:"2.2beta47-20sarge2", rls:"DEB3.1"))) {
    report += res;
  }

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

exit(0);