Debian: Security Advisory (DSA-1870-1)

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.64753");
  script_cve_id("CVE-2009-2694");
  script_tag(name:"creation_date", value:"2009-09-02 02:58:39 +0000 (Wed, 02 Sep 2009)");
  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-1870-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 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=DEB5");

  script_xref(name:"Advisory-ID", value:"DSA-1870-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2009/DSA-1870-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-1870");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'pidgin' package(s) announced via the DSA-1870-1 advisory.");

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

  script_tag(name:"insight", value:"Federico Muttis discovered that libpurple, the shared library that adds support for various instant messaging networks to the pidgin IM client, is vulnerable to a heap-based buffer overflow. This issue exists because of an incomplete fix for CVE-2008-2927 and CVE-2009-1376. An attacker can exploit this by sending two consecutive SLP packets to a victim via MSN.

The first packet is used to create an SLP message object with an offset of zero, the second packet then contains a crafted offset which hits the vulnerable code originally fixed in CVE-2008-2927 and CVE-2009-1376 and allows an attacker to execute arbitrary code.

Note: Users with the 'Allow only the users below' setting are not vulnerable to this attack. If you can't install the below updates you may want to set this via Tools->Privacy.

For the stable distribution (lenny), this problem has been fixed in version 2.4.3-4lenny3.

For the testing distribution (squeeze), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in version 2.5.9-1.

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

  script_tag(name:"affected", value:"'pidgin' package(s) on Debian 5.");

  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 == "DEB5") {

  if(!isnull(res = isdpkgvuln(pkg:"finch", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"finch", ver:"2.4.3-4lenny3+b1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"finch-dev", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libpurple-bin", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libpurple-dev", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libpurple0", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libpurple0", ver:"2.4.3-4lenny3+b1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin", ver:"2.4.3-4lenny3+b1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin-data", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin-dbg", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin-dbg", ver:"2.4.3-4lenny3+b1", rls:"DEB5"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"pidgin-dev", ver:"2.4.3-4lenny3", rls:"DEB5"))) {
    report += res;
  }

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

exit(0);