No exploitation reportedFix available

CVE-2018-10844

No exploitation reported by the sources we read.

Published2018-08-22
WeaknessCWE-327 · CWE-385

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.

Timeline

dates in UTC

2018-08-2213:29CVE publishedNVD

Versions per branch

NVD

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
16.4	= 16.04	no fix published	NVD
18.4	= 18.04	no fix published	NVD
18.10	= 18.10	no fix published	NVD
19.4	= 19.04	no fix published	NVD

Fedoraproject fedora

Branch	Affected	Fixed in	Source
31.x	= 31	no fix published	NVD
32.x	= 32	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
8.0	= 8.0	no fix published	NVD

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

gnutlsSUSE:OpenStack Cloud 7all versions · fixed in 3.2.15-18.6.1
gnutlsSUSE:Linux Enterprise Software Development Kit 12 SP3all versions · fixed in 3.3.27-3.3.1
gnutlsSUSE:Linux Enterprise Server for SAP Applications 12 SP3all versions · fixed in 3.3.27-3.3.1
gnutlsSUSE:Linux Enterprise Server for SAP Applications 12 SP2all versions · fixed in 3.2.15-18.6.1
gnutlsSUSE:Linux Enterprise Server for SAP Applications 12 SP1all versions · fixed in 3.2.15-18.6.1
gnutlsSUSE:Linux Enterprise Server 12-LTSSall versions · fixed in 3.2.15-18.6.1
gnutlsSUSE:Linux Enterprise Server 12 SP3all versions · fixed in 3.3.27-3.3.1
gnutlsSUSE:Linux Enterprise Server 12 SP2-LTSSall versions · fixed in 3.2.15-18.6.1

18 more package ranges on OSV.dev

Vendor advisories

RHSA-2018:3050 Red Hat Product Security104 products fixed
Red Hat Security Advisory: gnutls security, bug fix, and enhancement update

Full record on NVD

Fix

Vendor fix Red Hat Product Security RHSA-2018:3050 · 104 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

bugzilla.redhat.comPatch
gitlab.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof of concept: PoC-in-GitHubno public repository identifiedread 2026-11-08
Metasploit modules: none listed

Sources

NVDCVSS 3.15.9read 2026-10-23
CNACVSS 3.05.9known since 2026-10-23
NVDCVSS 2.04.3read 2026-10-23
CNAweakness (CWE)CWE-385known since 2026-10-23
NVDweakness (CWE)CWE-327read 2026-10-23
FIRST EPSSEPSS score3.6 %2026-11-08
OSVaffected packages—
GitHub Advisoriesadvisory—

Identifiers

EUVD-2018-2913same flawENISA EUVD · LicenseRef-ENISA-legal-notice
GHSA-9779-jfg9-frm3same flawGitHub Advisory Database · CC-BY-4.0
DLA-1560-1advisory covering several CVEsDebian · LicenseRef-unstated
MGASA-2018-0435advisory covering several CVEsMageia · LicenseRef-unstated
RHSA-2018:3050advisory covering several CVEsRed Hat · CC-BY-4.0
SUSE-SU-2018:2825-1advisory covering several CVEsSUSE · LicenseRef-unstated
SUSE-SU-2018:2825-2advisory covering several CVEsSUSE · LicenseRef-unstated
SUSE-SU-2018:2842-1advisory covering several CVEsSUSE · LicenseRef-unstated
SUSE-SU-2018:2930-1advisory covering several CVEsSUSE · LicenseRef-unstated
USN-3999-1advisory covering several CVEsUbuntu

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2018-08-22
Last Modified: 2026-06-17
NVD status: Modified
GitHub Advisory: GHSA-9779-jfg9-frm3

Frequently asked questions

What is CVE-2018-10844?

Is CVE-2018-10844 actively exploited?

Active exploitation of CVE-2018-10844 has not been confirmed. Its EPSS score was 3.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-10844?

CVE-2018-10844 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

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Sources for this record

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