CVE-2018-10844
MEDIUM severity · CVSS 5.9 · CWE-385
5.9CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10844Patch
- https://gitlab.com/gnutls/gnutls/merge_requests/657Patch
- http://www.securityfocus.com/bid/105138Advisory
- https://access.redhat.com/errata/RHSA-2018:3050Advisory
- https://access.redhat.com/errata/RHSA-2018:3505
- https://eprint.iacr.org/2018/747Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00022.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/