Slackware: Security Advisory (SSA:2015-190-01)

# 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("1.3.6.1.4.1.25623.1.1.13.2015.190.01");
  script_cve_id("CVE-2015-1793");
  script_tag(name:"creation_date", value:"2022-04-21 12:12:27 +0000 (Thu, 21 Apr 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2015-07-09 19:45:56 +0000 (Thu, 09 Jul 2015)");

  script_name("Slackware: Security Advisory (SSA:2015-190-01)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Slackware Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/slackware_linux", "ssh/login/slackpack", re:"ssh/login/release=SLK(14\.0|14\.1|current)");

  script_xref(name:"Advisory-ID", value:"SSA:2015-190-01");
  script_xref(name:"URL", value:"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.561427");
  script_xref(name:"URL", value:"https://openssl.org/news/secadv_20150709.txt");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'openssl' package(s) announced via the SSA:2015-190-01 advisory.");

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

  script_tag(name:"insight", value:"New openssl packages are available for Slackware 14.0, 14.1, and -current to
fix a security issue.


Here are the details from the Slackware 14.1 ChangeLog:
+--------------------------+
patches/packages/openssl-1.0.1p-i486-1_slack14.1.txz: Upgraded.
 This update fixes the following security issue:
 Alternative chains certificate forgery (CVE-2015-1793).
 During certificate verification, OpenSSL (starting from version 1.0.1n and
 1.0.2b) will attempt to find an alternative certificate chain if the first
 attempt to build such a chain fails. An error in the implementation of this
 logic can mean that an attacker could cause certain checks on untrusted
 certificates to be bypassed, such as the CA flag, enabling them to use a
 valid leaf certificate to act as a CA and 'issue' an invalid certificate.
 This issue will impact any application that verifies certificates including
 SSL/TLS/DTLS clients and SSL/TLS/DTLS servers using client authentication.
 This issue affects OpenSSL versions 1.0.2c, 1.0.2b, 1.0.1n and 1.0.1o.
 This issue was reported to OpenSSL on 24th June 2015 by Adam Langley/David
 Benjamin (Google/BoringSSL). The fix was developed by the BoringSSL project.
 For more information, see:
 [link moved to references]
 [link moved to references]
 (* Security fix *)
patches/packages/openssl-solibs-1.0.1p-i486-1_slack14.1.txz: Upgraded.
+--------------------------+");

  script_tag(name:"affected", value:"'openssl' package(s) on Slackware 14.0, Slackware 14.1, Slackware current.");

  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-slack.inc");

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

res = "";
report = "";

if(release == "SLK14.0") {

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-i486-1_slack14.0", rls:"SLK14.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-x86_64-1_slack14.0", rls:"SLK14.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-i486-1_slack14.0", rls:"SLK14.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-x86_64-1_slack14.0", rls:"SLK14.0"))) {
    report += res;
  }

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

if(release == "SLK14.1") {

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-i486-1_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-x86_64-1_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-i486-1_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-x86_64-1_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

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

if(release == "SLKcurrent") {

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-i586-1", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl", ver:"1.0.1p-x86_64-1", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-i586-1", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"openssl-solibs", ver:"1.0.1p-x86_64-1", rls:"SLKcurrent"))) {
    report += res;
  }

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

exit(0);