CVE-2018-10844
Medium
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.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Gnutls
PublishedAug 22, 2018
First seenAug 22, 2018
Weakness typeCWE-385CWE-385
How to fix
Update
- gnu gnutls3.6.12 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2018:3505
- access.redhat.com/errata/RHSA-2018:3050
- usn.ubuntu.com/3999-1/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu gnutls | v < 3.6.12 | 3.6.12 |
| redhat enterprise_linux_desktop | 7.0 | — |
| redhat enterprise_linux_server | 7.0 | — |
| redhat enterprise_linux_workstation | 7.0 | — |
| canonical ubuntu_linux | 16.04, 18.04, 18.10, 19.04 | — |
| fedoraproject fedora | 31, 32 | — |
| debian debian_linux | 8.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.