Slackware: Security Advisory (SSA:2021-337-01)

# 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("1.3.6.1.4.1.25623.1.1.13.2021.337.01");
  script_cve_id("CVE-2021-43527");
  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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-12-16 14:32:02 +0000 (Thu, 16 Dec 2021)");

  script_name("Slackware: Security Advisory (SSA:2021-337-01)");
  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|14\.2|current)");

  script_xref(name:"Advisory-ID", value:"SSA:2021-337-01");
  script_xref(name:"URL", value:"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2021&m=slackware-security.489028");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'mozilla-nss' package(s) announced via the SSA:2021-337-01 advisory.");

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

  script_tag(name:"insight", value:"New mozilla-nss packages are available for Slackware 14.0, 14.1, 14.2,
and -current to fix a security issue.


Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/mozilla-nss-3.40.1-i586-2_slack14.2.txz: Rebuilt.
 This update fixes a critical security issue:
 NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are
 vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS
 signatures. Applications using NSS for handling signatures encoded within
 CMS, S/MIME, PKCS #7, or PKCS #12 are likely to be impacted. Applications
 using NSS for certificate validation or other TLS, X.509, OCSP or CRL
 functionality may be impacted, depending on how they configure NSS.
 Note: This vulnerability does NOT impact Mozilla Firefox. However, email
 clients and PDF viewers that use NSS for signature verification, such as
 Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted.
 Thanks to Tavis Ormandy of Google Project Zero.
 For more information, see:
 [link moved to references]
 [link moved to references]
 (* Security fix *)
+--------------------------+");

  script_tag(name:"affected", value:"'mozilla-nss' package(s) on Slackware 14.0, Slackware 14.1, Slackware 14.2, 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:"mozilla-nss", ver:"3.23-i486-2_slack14.0", rls:"SLK14.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.23-x86_64-2_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:"mozilla-nss", ver:"3.40.1-i486-2_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.40.1-x86_64-2_slack14.1", rls:"SLK14.1"))) {
    report += res;
  }

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

if(release == "SLK14.2") {

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.40.1-i586-2_slack14.2", rls:"SLK14.2"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.40.1-x86_64-2_slack14.2", rls:"SLK14.2"))) {
    report += res;
  }

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

if(release == "SLKcurrent") {

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.73-i586-1", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"mozilla-nss", ver:"3.73-x86_64-1", rls:"SLKcurrent"))) {
    report += res;
  }

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

exit(0);