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TI-2018-08903 Aliases CVE-2018-12404GHSA-54r4-cg3v-pxw7

A cached side channel attack during handshakes using RSA encryption could allow for the…

Priority MEDIUM 56Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 9 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.

Why it matters now

EPSS 0.44248 98th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 9 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaNetwork Security Services (NSS)All versions prior to NSS 3.41—No fix listedCNA
  • Network Security Services (NSS) VendorMozilla Affected All versions prior to NSS 3.41 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*before 3.41VulnerableMozilla
  • cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* Versions before 3.41 Vulnerable ·Mozilla

Remediation

Red Hat 1 advisory

  • RHSA-2019:2237 Released 2019-08-06 · Red Hat rating Moderate
    nss, nss-softokn, nss-util, and nspr security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) nspr-4.21.0-1.el7, nss-3.44.0-4.el7, nss-softokn-3.44.0-5.el7 +4
    • Red Hat Enterprise Linux Client Optional (v. 7) nspr-devel-4.21.0-1.el7, nss-devel-3.44.0-4.el7, nss-pkcs11-devel-3.44.0-4.el7 +3
    • Red Hat Enterprise Linux ComputeNode (v. 7) nspr-4.21.0-1.el7, nss-3.44.0-4.el7, nss-softokn-3.44.0-5.el7 +4
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) nspr-devel-4.21.0-1.el7, nss-devel-3.44.0-4.el7, nss-pkcs11-devel-3.44.0-4.el7 +3
    • Red Hat Enterprise Linux Server (v. 7) nspr-4.21.0-1.el7, nspr-4.21.0-1.el7.ppc, nspr-devel-4.21.0-1.el7 +19
    • Red Hat Enterprise Linux Server Optional (v. 7) nss-pkcs11-devel-3.44.0-4.el7, nss-pkcs11-devel-3.44.0-4.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) nspr-4.21.0-1.el7, nspr-devel-4.21.0-1.el7, nss-3.44.0-4.el7 +9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) nss-pkcs11-devel-3.44.0-4.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Virtualization 4AffectedNo fix planned: Will not fix
Red Hat Ansible Tower 3.4 for RHEL 7 ServerFixed—
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2237
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:2237
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat OpenShift Enterprise 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12404
  2. 2026-10-03 Alias added: GHSA-54r4-cg3v-pxw7

References

Advisory 3

Other 4

  • TI-2015-03381 The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server… CVSS 3.1LOW 3.7
  • TI-2007-00009 Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services… CVSS 2.0MEDIUM 6.8
  • TI-2015-05957 Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services… CVSS 3.0CRITICAL 9.8
  • TI-2004-00763 Heap-based buffer overflow in Netscape Network Security Services (NSS) library allows… CVSS 2.0HIGH 7.5
  • TI-2014-01197 Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in… CVSS 2.0HIGH 10.0
  • TI-2017-03484 Out-of-bounds write in Mozilla Thunderbird CVSS 3.0CRITICAL 9.8
See all 49 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences