Ubuntu: Security Advisory (USN-2810-1)

# SPDX-FileCopyrightText: 2015 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("1.3.6.1.4.1.25623.1.0.842532");
  script_cve_id("CVE-2002-2443", "CVE-2014-5355", "CVE-2015-2694", "CVE-2015-2695", "CVE-2015-2696", "CVE-2015-2697", "CVE-2015-2698");
  script_tag(name:"creation_date", value:"2015-11-13 05:30:22 +0000 (Fri, 13 Nov 2015)");
  script_version("2024-02-02T05:06:05+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:C/I:C/A:C");

  script_name("Ubuntu: Security Advisory (USN-2810-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(12\.04\ LTS|14\.04\ LTS|15\.04|15\.10)");

  script_xref(name:"Advisory-ID", value:"USN-2810-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-2810-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5' package(s) announced via the USN-2810-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that the Kerberos kpasswd service incorrectly handled
certain UDP packets. A remote attacker could possibly use this issue to
cause resource consumption, resulting in a denial of service. This issue
only affected Ubuntu 12.04 LTS. (CVE-2002-2443)

It was discovered that Kerberos incorrectly handled null bytes in certain
data fields. A remote attacker could possibly use this issue to cause a
denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu
14.04 LTS. (CVE-2014-5355)

It was discovered that the Kerberos kdcpreauth modules incorrectly tracked
certain client requests. A remote attacker could possibly use this issue
to bypass intended preauthentication requirements. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694)

It was discovered that Kerberos incorrectly handled certain SPNEGO packets.
A remote attacker could possibly use this issue to cause a denial of
service. (CVE-2015-2695)

It was discovered that Kerberos incorrectly handled certain IAKERB packets.
A remote attacker could possibly use this issue to cause a denial of
service. (CVE-2015-2696, CVE-2015-2698)

It was discovered that Kerberos incorrectly handled certain TGS requests. A
remote attacker could possibly use this issue to cause a denial of service.
(CVE-2015-2697)");

  script_tag(name:"affected", value:"'krb5' package(s) on Ubuntu 12.04, Ubuntu 14.04, Ubuntu 15.04, Ubuntu 15.10.");

  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 == "UBUNTU12.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit8", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-6", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb53", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.10+dfsg~beta1-2ubuntu0.7", rls:"UBUNTU12.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU14.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-otp", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit9", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-7", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrad0", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.12+dfsg-2ubuntu5.2", rls:"UBUNTU14.04 LTS"))) {
    report += res;
  }

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

if(release == "UBUNTU15.04") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-otp", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit9", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-7", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrad0", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.12.1+dfsg-18ubuntu0.1", rls:"UBUNTU15.04"))) {
    report += res;
  }

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

if(release == "UBUNTU15.10") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-k5tls", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-otp", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit9", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-8", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrad0", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.13.2+dfsg-2ubuntu0.1", rls:"UBUNTU15.10"))) {
    report += res;
  }

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

exit(0);