Mageia: Security Advisory (MGASA-2014-0457)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.10.2014.0457");
  script_cve_id("CVE-2014-7824");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:08+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:08 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:N/A:P");

  script_name("Mageia: Security Advisory (MGASA-2014-0457)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA(3|4)");

  script_xref(name:"Advisory-ID", value:"MGASA-2014-0457");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2014-0457.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=14494");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGAA-2014-0182.html");
  script_xref(name:"URL", value:"http://openwall.com/lists/oss-security/2014/11/10/2");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'dbus' package(s) announced via the MGASA-2014-0457 advisory.");

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

  script_tag(name:"insight", value:"The patch issued by the D-Bus maintainers for CVE-2014-3636 was based on
incorrect reasoning, and does not fully prevent the attack described as
'CVE-2014-3636 part A', which is repeated below. Preventing that attack
requires raising the system dbus-daemon's RLIMIT_NOFILE (ulimit -n) to
a higher value.

By queuing up the maximum allowed number of fds, a malicious sender
could reach the system dbus-daemon's RLIMIT_NOFILE (ulimit -n, typically
1024 on Linux). This would act as a denial of service in two ways:

* new clients would be unable to connect to the dbus-daemon
* when receiving a subsequent message from a non-malicious client that
 contained a fd, dbus-daemon would receive the MSG_CTRUNC flag,
 indicating that the list of fds was truncated, kernel fd-passing APIs
 do not provide any way to recover from that, so dbus-daemon responds
 to MSG_CTRUNC by disconnecting the sender, causing denial of service
 to that sender.

This update resolves the issue (CVE-2014-7824).

Also default auth_timeout that was changed from 30s to 5s in MGASA-2014-0395,
and raised to 20s in MGAA-2014-0182 is now changed back to 30s as there
still are reports about failing dbus connections.");

  script_tag(name:"affected", value:"'dbus' package(s) on Mageia 3, Mageia 4.");

  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-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "MAGEIA3") {

  if(!isnull(res = isrpmvuln(pkg:"dbus", rpm:"dbus~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dbus-doc", rpm:"dbus-doc~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dbus-x11", rpm:"dbus-x11~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64dbus-devel", rpm:"lib64dbus-devel~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64dbus1_3", rpm:"lib64dbus1_3~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libdbus-devel", rpm:"libdbus-devel~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libdbus1_3", rpm:"libdbus1_3~1.6.8~4.8.mga3", rls:"MAGEIA3"))) {
    report += res;
  }

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

if(release == "MAGEIA4") {

  if(!isnull(res = isrpmvuln(pkg:"dbus", rpm:"dbus~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dbus-doc", rpm:"dbus-doc~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"dbus-x11", rpm:"dbus-x11~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64dbus-devel", rpm:"lib64dbus-devel~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"lib64dbus1_3", rpm:"lib64dbus1_3~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libdbus-devel", rpm:"libdbus-devel~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libdbus1_3", rpm:"libdbus1_3~1.6.18~1.8.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

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

exit(0);