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Vulnerability record · CVE-2020-8945 · published 12 February 2020

CVE-2020-8945: Gpgme project gpgme use after free vulnerability

GGpgme Project · Gpgme

The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.

7.5 CVSS 3.1 High EPSS 5.1% · top 8.0% CWE-416 · Use after free
7.5CVSS 3.1 base score, v2 5.1
5.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
22References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2020:0679 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0689 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0697 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1795838 Issue TrackingPatchThird Party Advisory
https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1 PatchThird Party Advisory
https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1 PatchThird Party Advisory
https://github.com/proglottis/gpgme/pull/23 ExploitPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIF
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6P6SSNKN4H6GSEVROHBDXA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDBT77KV3U7BESJX3P4S4MP
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXV7NZELYWRRCXATXU3FYD3
https://access.redhat.com/errata/RHSA-2020:0679 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0689 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0697 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1795838 Issue TrackingPatchThird Party Advisory
https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1 PatchThird Party Advisory
https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1 PatchThird Party Advisory
https://github.com/proglottis/gpgme/pull/23 ExploitPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIF
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6P6SSNKN4H6GSEVROHBDXA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDBT77KV3U7BESJX3P4S4MP
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXV7NZELYWRRCXATXU3FYD3

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Source: NIST National Vulnerability Database (record CVE-2020-8945), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.