THREATPORT/VULNERABILITY/CVE-2018-10844
MEDIUM SEVERITY

CVE-2018-10844

Gnutls vulnerability

CVSS
5.9
EPSS
3.6%
EPSS pct
88th
Exploited
No known
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.
Affected vendor
Gnu
Affected product
Gnutls
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2018-08-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2018-10844

  • Confirm whether Gnu Gnutls is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-10844.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-10844

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-10844 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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