Public Date:
1582571: CVE-2018-10844 gnutls: HMAC-SHA-256 vulnerable to Lucky thirteen attack due to not enough dummy function calls
It was found that GnuTLS's implementation of HMAC-SHA-256 was vulnerable to Lucky Thirteen-style attack. A remote attacker could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets.

Find out more about CVE-2018-10844 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 5.9
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact None
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (gnutls) RHSA-2018:3050 2018-10-30

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 gnutls Not affected
Red Hat Enterprise Linux 8 mingw-gnutls Affected
Red Hat Enterprise Linux 6 gnutls Will not fix
Red Hat Enterprise Linux 5 gnutls Will not fix

External References

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