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TI-2023-05640 Aliases CVE-2023-6135GHSA-jxv6-m6pm-cqh2

Observable discrepancy in Mozilla Firefox

Priority LOW 21CWE-203Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 7 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-203.

Summary

Multiple NSS NIST curves were susceptible to a side-channel attack known as "Minerva". This attack could potentially allow an attacker to recover the private key. This vulnerability affects Firefox < 121.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00714 53rd percentileScored 2026-11-07
Fix Partial Firefox (Mozilla): 121Red Hat: 9 advisoriesRed Hat: 7 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 121121Patch availableCNA
  • Firefox VendorMozilla Affected before 121 Fixed in 121 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 121.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 121.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 121

Red Hat 9 advisories

  • RHSA-2024:6850 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox-128.2.0-1.el8_8
  • RHSA-2024:6839 Released 2024-09-19 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox-128.2.0-1.el8_2
  • RHSA-2024:6786 Released 2024-09-18 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox-128.2.0-1.el9_2, firefox-x11-128.2.0-1.el9_2
Show 6 more Red Hat advisories
  • RHSA-2024:6782 Released 2024-09-18 · Red Hat rating Important
    firefox update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox-128.2.0-1.el9_0
  • RHSA-2024:1686 Released 2024-04-04 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.6.7 for OpenShift image security update
    • Middleware Containers for OpenShift rh-sso-7/sso7-rhel8-operator-bundle, rh-sso-7/sso76-openshift-rhel8
  • RHSA-2024:0790 Released 2024-02-12 · Red Hat rating Moderate
    nss security update
    • Red Hat Enterprise Linux AppStream (v. 9) nspr-4.35.0-6.el9_3, nspr-devel-4.35.0-6.el9_3, nss-3.90.0-6.el9_3 +9
  • RHSA-2024:0791 Released 2024-02-12 · Red Hat rating Moderate
    nss security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) nspr-4.35.0-6.el9_2, nspr-devel-4.35.0-6.el9_2, nss-3.90.0-6.el9_2 +9
  • RHSA-2024:0786 Released 2024-02-12 · Red Hat rating Moderate
    nss security update
    • Red Hat Enterprise Linux AppStream (v. 8) nss-3.90.0-6.el8_9, nss-devel-3.90.0-6.el8_9, nss-softokn-3.90.0-6.el8_9 +7
  • RHSA-2024:0785 Released 2024-02-12 · Red Hat rating Moderate
    nss security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) nss-3.90.0-6.el8_8, nss-devel-3.90.0-6.el8_8, nss-softokn-3.90.0-6.el8_8 +7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 121

    18 records Highest priority Priority MEDIUM 8 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2023-06261 Out-of-bounds write in Mozilla Firefox ESRPriority MEDIUM 57
    • TI-2023-06263 Out-of-bounds write in Mozilla Firefox ESRPriority MEDIUM 43
    • TI-2023-06271 Improper handling of exceptional conditions in Mozilla FirefoxPriority MEDIUM 41
    Show all 18 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Middleware Containers for OpenShiftFixed RHSA-2024:1686
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:0786
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:0790
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2024:6839
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2024:6782
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:0785, RHSA-2024:6850
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:0791, RHSA-2024:6786
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-6135
  2. 2026-10-03 Alias added: GHSA-jxv6-m6pm-cqh2

References

Advisory 1

Other 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

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