CVE-2018-10844

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.

Categories

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.41%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: [UNKNOWN] gnutls
Published at:
Updated at:

References

Link Tags
https://eprint.iacr.org/2018/747 third party advisory
https://gitlab.com/gnutls/gnutls/merge_requests/657 issue tracking third party advisory patch
https://access.redhat.com/errata/RHSA-2018:3505 vendor advisory broken link
http://www.securityfocus.com/bid/105138 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844 issue tracking third party advisory patch
https://access.redhat.com/errata/RHSA-2018:3050 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00022.html third party advisory mailing list
https://usn.ubuntu.com/3999-1/ third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-10844?
CVE-2018-10844 has been scored as a medium severity vulnerability.
How to fix CVE-2018-10844?
To fix CVE-2018-10844, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-10844 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-10844 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-10844?
CVE-2018-10844 affects [UNKNOWN] gnutls.
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