Use After Free in Gpgme Project
CVE-2020-8945
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
- Gpgme Project
- Fedoraproject Fedora — versions 30, 31, 32
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Red Hat Enterprise Linux For IBM Z Systems — versions 7.0
- Red Hat Enterprise Linux For Power Little Endian — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
- Red Hat Openshift Container Platform — versions 3.11, 4.1, 4.2
- Red Hat Openshift Container Platform For IBM Z — versions 4.1, 4.2
- Red Hat Openshift Container Platform For Linuxone — versions 4.1, 4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/proglottis/gpgme/pull/23 (Exploit, Patch, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1 (Patch, Third Party Advisory)
- github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2020:0679 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0689 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0697 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8945?
- CVE-2020-8945 is a high-severity vulnerability in Gpgme Project, classified under Use After Free. CVSS score: 7.5/10. Published 2020-02-12.
- How severe is CVE-2020-8945?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8945 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.