What’s Vulnerable › Vulnerabilities
CVE-2020-8945
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 5.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-02-12 · updated 2026-06-17
- Weakness: CWE-416
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.
Affected products
- Fedoraproject Fedora: 30, 31, 32
- Gpgme Project Gpgme: before 0.1.1 — fixed in 0.1.1
- RedHat Enterprise Linux For Ibm Z Systems: 7.0
- RedHat Enterprise Linux For Power Little Endian: 7.0
- RedHat Enterprise Linux Server: 7.0
- RedHat Enterprise Linux Workstation: 7.0
- Red Hat OpenShift Container Platform 4.18: 3.11, 4.1, 4.2, 4.3, 4.4, 4.5
- RedHat Openshift Container Platform For Ibm Z: 4.1, 4.2
- RedHat Openshift Container Platform For Linuxone: 4.1, 4.2
How to fix
Upgrade to a fixed version: Gpgme Project Gpgme 0.1.1. Check the vendor advisory for mitigations.
References
- https://access.redhat.com/errata/RHSA-2020:0679
- https://access.redhat.com/errata/RHSA-2020:0689
- https://access.redhat.com/errata/RHSA-2020:0697
- https://bugzilla.redhat.com/show_bug.cgi?id=1795838
- https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1
- https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1
- https://github.com/proglottis/gpgme/pull/23
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6P6SSNKN4H6GSEVROHBDXA64PX7EOED/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KDBT77KV3U7BESJX3P4S4MPVDGRTAQA2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXV7NZELYWRRCXATXU3FYD3G3WJT3WYM/
- https://access.redhat.com/errata/RHSA-2020:0679
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