VDB

DEBIAN-CVE-2021-23998

DEBIAN-CVE-2021-23998 PUBLISHED CVSS 6.5 MEDIUM

Record from OSV · Published June 24, 2021

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
firefox-esrDebian:1478.10.0esr-1
firefox-esrDebian:1378.10.0esr-1
thunderbirdDebian:121:78.10.0-1
thunderbirdDebian:141:78.10.0-1
firefox-esrDebian:1278.10.0esr-1
thunderbirdDebian:131:78.10.0-1

Risk scores

CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

VendorProductVersions
Debian:14firefox-esr0
Debian:13firefox-esr0
Debian:12thunderbird0
Debian:14thunderbird0
Debian:12firefox-esr0
Debian:13thunderbird0

Timeline

  • Jun 24, 2021 CVE Published
  • Oct 23, 2026 CVE Updated

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln DEBIAN-CVE-2021-23998
vulnetix vdb fixes DEBIAN-CVE-2021-23998

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/DEBIAN-CVE-2021-23998/fixes/registry"

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