Vulnerability in Red Hat Enterprise Linux
CVE-2020-10759
A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented or enabled in versions of fwupd shipped with Red Hat Enterprise Linux 7 and 8. The highest threat from this vulnerability is to confidentiality and integrity.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Fwupd — versions all verions of fwupd
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/justinsteven/advisories/blob/master/2020_fwupd_dangling_s3_bucket_an… (Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2020-10759?
- CVE-2020-10759 is a medium-severity vulnerability in Red Hat Enterprise Linux, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.0/10. Published 2020-09-15.
- How severe is CVE-2020-10759?
- Medium severity. CVSS v3 base score is 6.0 out of 10.
- Is CVE-2020-10759 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.