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01 Record

CVE-2020-8835

Linux kernel bpf verifier vulnerability

HighPUBLISHEDCNA: canonical
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

02 Description

Linux kernel bpf verifier vulnerability

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
6.01% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 93.1% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-04-02 18:00Z6 YR AGO
Last updated
2024-09-17 02:15Z2 YR AGO
Reserved
2020-02-10
Assigning CNA
canonical
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
6b0f4c1da49c9629b00ce4b08a81b51f33a4b3a6928b4fc398c3d6ce05538316

05 Affected products

VendorProductVersionsPlatforms
Linux kernelLinux kernel5.6-stable to < 5.6.1, 5.5-stable to < 5.5.14, 5.4.7 to < 5.4-stable*—

06 References

07 Remediation

Revert commit 581738a681b6 ("bpf: Provide better register bounds after jmp32 instructions").

08 Fixed in

Arch Linux

  • linux
    Fixed in 5.5.13.arch2-1
  • linux-hardened
    Fixed in 5.5.13.b-1
  • linux-lts
    Fixed in 5.4.28-2

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • linux
    Fixed in 5.5.13-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 5.5.13-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 5.5.13-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux-azure-5.3
    Fixed in 5.3.0-1018.19~18.04.1
  • linux-azure-edge
    No fix yet
  • linux-gcp-5.3
    Fixed in 5.3.0-1016.17~18.04.1
  • linux-gcp-edge
    No fix yet
  • linux-gke-5.3
    Fixed in 5.3.0-1016.17~18.04.1
  • linux-hwe
    Fixed in 5.3.0-45.37~18.04.1
  • linux-hwe-edge
    No fix yet
  • linux-oracle-5.3
    Fixed in 5.3.0-1013.14~18.04.1
  • linux-raspi2-5.3
    Fixed in 5.3.0-1021.23~18.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux-raspi2
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.