Vulnerability in Gnu Gnutls
CVE-2018-10844
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.
EPSS: 0.036 (88.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Gnu Gnutls
- [Unknown] Gnutls — versions n/a
- Canonical Ubuntu_linux — versions 16.04, 18.04, 18.10
- Debian Debian_linux — versions 8.0
- Fedoraproject Fedora — versions 31, 32
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_workstation — versions 7.0
Weakness classification (CWE)
References
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Broken Link)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
Frequently asked questions
- What is CVE-2018-10844?
- CVE-2018-10844 is a medium-severity vulnerability in Gnu Gnutls, classified under CWE-385. CVSS score: 5.9/10. Published 2018-08-22.
- How severe is CVE-2018-10844?
- Medium severity. CVSS v3 base score is 5.9 out of 10.