Debian: Security Advisory (DSA-2212-1)

# SPDX-FileCopyrightText: 2011 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("1.3.6.1.4.1.25623.1.0.69556");
  script_cve_id("CVE-2011-1496");
  script_tag(name:"creation_date", value:"2011-05-12 17:21:50 +0000 (Thu, 12 May 2011)");
  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-2212-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 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-2212-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2011/DSA-2212-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-2212");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'tmux' package(s) announced via the DSA-2212-1 advisory.");

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

  script_tag(name:"insight", value:"Daniel Danner discovered that tmux, a terminal multiplexer, is not properly dropping group privileges. Due to a patch introduced by Debian, when invoked with the -S option, tmux is not dropping permissions obtained through its setgid installation.

The oldstable distribution (lenny) is not affected by this problem, as it does not include tmux.

For the stable distribution (squeeze), this problem has been fixed in version 1.3-2+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in version 1.4-6.

For the unstable distribution (sid), this problem has been fixed in version 1.4-6.

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

  script_tag(name:"affected", value:"'tmux' 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:"tmux", ver:"1.3-2+squeeze1", rls:"DEB6"))) {
    report += res;
  }

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

exit(0);