Debian: Security Advisory (DSA-1195-1)

# 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("1.3.6.1.4.1.25623.1.0.57511");
  script_cve_id("CVE-2006-2940", "CVE-2006-3738", "CVE-2006-4343");
  script_tag(name:"creation_date", value:"2008-01-17 22:13:11 +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:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");

  script_name("Debian: Security Advisory (DSA-1195-1)");
  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=DEB3\.1");

  script_xref(name:"Advisory-ID", value:"DSA-1195-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2006/DSA-1195-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-1195");
  script_xref(name:"URL", value:"https://www.niscc.gov.uk");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'openssl096' package(s) announced via the DSA-1195-1 advisory.");

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

  script_tag(name:"insight", value:"Multiple vulnerabilities have been discovered in the OpenSSL cryptographic software package that could allow an attacker to launch a denial of service attack by exhausting system resources or crashing processes on a victim's computer.

CVE-2006-3738

Tavis Ormandy and Will Drewry of the Google Security Team discovered a buffer overflow in SSL_get_shared_ciphers utility function, used by some applications such as exim and mysql. An attacker could send a list of ciphers that would overrun a buffer.

CVE-2006-4343

Tavis Ormandy and Will Drewry of the Google Security Team discovered a possible DoS in the sslv2 client code. Where a client application uses OpenSSL to make a SSLv2 connection to a malicious server that server could cause the client to crash.

CVE-2006-2940

Dr S N Henson of the OpenSSL core team and Open Network Security recently developed an ASN1 test suite for NISCC ([link moved to references]). When the test suite was run against OpenSSL a DoS was discovered.

Certain types of public key can take disproportionate amounts of time to process. This could be used by an attacker in a denial of service attack.

For the stable distribution (sarge) these problems have been fixed in version 0.9.6m-1sarge4.

This package exists only for compatibility with older software, and is not present in the unstable or testing branches of Debian.

We recommend that you upgrade your openssl096 package. Note that services linking against the openssl shared libraries will need to be restarted. Common examples of such services include most Mail Transport Agents, SSH servers, and web servers.");

  script_tag(name:"affected", value:"'openssl096' package(s) on 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 == "DEB3.1") {

  if(!isnull(res = isdpkgvuln(pkg:"libssl0.9.6", ver:"0.9.6m-1sarge4", rls:"DEB3.1"))) {
    report += res;
  }

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

exit(0);