Debian: Security Advisory (DSA-3466-1)

# SPDX-FileCopyrightText: 2016 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("1.3.6.1.4.1.25623.1.0.703466");
  script_cve_id("CVE-2015-8629", "CVE-2015-8631");
  script_tag(name:"creation_date", value:"2016-02-03 23:00:00 +0000 (Wed, 03 Feb 2016)");
  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:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-02-17 15:29:15 +0000 (Wed, 17 Feb 2016)");

  script_name("Debian: Security Advisory (DSA-3466-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 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=DEB(7|8)");

  script_xref(name:"Advisory-ID", value:"DSA-3466-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2016/DSA-3466-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-3466");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'krb5' package(s) announced via the DSA-3466-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2015-8629

It was discovered that an authenticated attacker can cause kadmind to read beyond the end of allocated memory by sending a string without a terminating zero byte. Information leakage may be possible for an attacker with permission to modify the database.

CVE-2015-8630

It was discovered that an authenticated attacker with permission to modify a principal entry can cause kadmind to dereference a null pointer by supplying a null policy value but including KADM5_POLICY in the mask.

CVE-2015-8631

It was discovered that an authenticated attacker can cause kadmind to leak memory by supplying a null principal name in a request which uses one. Repeating these requests will eventually cause kadmind to exhaust all available memory.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.10.1+dfsg-5+deb7u7. The oldstable distribution (wheezy) is not affected by CVE-2015-8630.

For the stable distribution (jessie), these problems have been fixed in version 1.12.1+dfsg-19+deb8u2.

We recommend that you upgrade your krb5 packages.");

  script_tag(name:"affected", value:"'krb5' package(s) on Debian 7, Debian 8.");

  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 == "DEB7") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-doc", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-gss-samples", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-locales", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-multidev", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit8", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5srv-mit8", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-6", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dbg", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dev", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.10.1+dfsg-5+deb7u7", rls:"DEB7"))) {
    report += res;
  }

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

if(release == "DEB8") {

  if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-doc", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-gss-samples", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-locales", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-multidev", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-otp", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit9", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkadm5srv-mit9", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkdb5-7", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrad-dev", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrad0", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dbg", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dev", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.12.1+dfsg-19+deb8u2", rls:"DEB8"))) {
    report += res;
  }

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

exit(0);