CVE-2018-10844

MediumCVSS 5.9/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-385 CWE-327

Affected software

Vendor	Product	Versions
[UNKNOWN]	gnutls	n/a

References

http://www.securityfocus.com/bid/105138Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3050Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844Issue Tracking, Patch, Third Party Advisory
https://eprint.iacr.org/2018/747Third Party Advisory
https://gitlab.com/gnutls/gnutls/merge_requests/657Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
https://usn.ubuntu.com/3999-1/Third Party Advisory
http://www.securityfocus.com/bid/105138Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:3050Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844Issue Tracking, Patch, Third Party Advisory
https://eprint.iacr.org/2018/747Third Party Advisory
https://gitlab.com/gnutls/gnutls/merge_requests/657Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
https://usn.ubuntu.com/3999-1/Third Party Advisory

Timeline

Published: Aug 22, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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