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TI-2018-07662 Aliases CVE-2018-10846GHSA-qgw6-cgvx-vw2g

Broken or risky cryptographic algorithm in [UNKNOWN] gnutls

Priority LOW 25CWE-385Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 7 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-327.

Summary

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.

Why it matters now

EPSS 0.00392 33rd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 7 fixed, 3 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]gnutlsall versions—No fix listedCNA
  • gnutls Vendor[UNKNOWN] Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*before 3.6.12VulnerableGNU
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
  • cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* Versions before 3.6.12 Vulnerable ·GNU
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2018:3050 Released 2018-10-30 · Red Hat rating Moderate
    gnutls security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) gnutls-3.3.29-8.el7, gnutls-dane-3.3.29-8.el7, gnutls-utils-3.3.29-8.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) gnutls-c++-3.3.29-8.el7, gnutls-devel-3.3.29-8.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) gnutls-3.3.29-8.el7, gnutls-dane-3.3.29-8.el7, gnutls-utils-3.3.29-8.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) gnutls-c++-3.3.29-8.el7, gnutls-devel-3.3.29-8.el7
    • Red Hat Enterprise Linux Server (v. 7) gnutls-3.3.29-8.el7, gnutls-3.3.29-8.el7.ppc, gnutls-c++-3.3.29-8.el7 +6
    • Red Hat Enterprise Linux Workstation (v. 7) gnutls-3.3.29-8.el7, gnutls-c++-3.3.29-8.el7, gnutls-dane-3.3.29-8.el7 +2
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) gnutls-3.3.29-8.el7, gnutls-c++-3.3.29-8.el7, gnutls-dane-3.3.29-8.el7 +2

Fixed in the same release

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

  • Advisory ·

    [UNKNOWN] gnutls — RHSA-2018:3050

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2018-07661 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    • TI-2018-07660 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    Show all 3 records → Advisory →
  • Advisory ·

    [UNKNOWN] gnutls — FEDORA-2020-d14280a6e8

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2018-07661 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    • TI-2018-07660 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    Show all 3 records → Advisory →
Show 1 more group
  • Advisory ·

    [UNKNOWN] gnutls — FEDORA-2020-f90fb78f70

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2018-07661 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    • TI-2018-07660 Broken or risky cryptographic algorithm in [UNKNOWN] gnutlsPriority LOW 33
    Show all 3 records → Advisory →

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 Enterprise Linux Client (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3050
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:3050
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-10846
  2. 2026-10-03 Alias added: GHSA-qgw6-cgvx-vw2g

References

Patch 2

Advisory 7

Sources

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