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Vulnerabilities

Vulnerability · CVE-2019-13627

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library.

Published Sep 25, 2019 · catalog updated Oct 14, 2026 · ubuntu linux

Check if you run it

No confirmed exploitation is on record for CVE-2019-13627. EPSS is 0.55%. Act only if a listed version of ubuntu linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.55%
Remediation
Advisory link
Affected products
cpe canonical/ubuntu linux · cpe libgcrypt20 project/libgcrypt20 · cpe opensuse/leap

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe canonical/ubuntu linux12.04
  • cpe canonical/ubuntu linux14.04
  • cpe canonical/ubuntu linux16.04
  • cpe canonical/ubuntu linux18.04
  • cpe canonical/ubuntu linux19.04
  • cpe canonical/ubuntu linux19.10
  • cpe libgcrypt20 project/libgcrypt201.6.3-2\+deb8u4
  • cpe libgcrypt20 project/libgcrypt201.7.6-2\+deb9u3
  • cpe libgcrypt20 project/libgcrypt201.8.4-5
  • cpe opensuse/leap15.0
  • cpe opensuse/leap15.1

How to fix CVE-2019-13627

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2019-13627. EPSS is 0.55%. Act only if a listed version of ubuntu linux is installed.

Which versions are affected?

Compare what you have installed with canonical/ubuntu linux 12.04; canonical/ubuntu linux 14.04; canonical/ubuntu linux 16.04; canonical/ubuntu linux 18.04. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-203: Observable Discrepancy. EPSS 0.55%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Ubuntu security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2019 · NIST NVD

    Detected

    It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

  2. Oct 14, 2026 · NIST NVD

    Updated

    It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

Sources

  • CVE.orgVulnerability recordCVE-2019-13627

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-13627

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2019-13627

    It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.