7.8

CVE-2022-33967: denx software engineering u-boot Out-of-bounds Write

Modified
AliasesUBUNTU-CVE-2022-33967DEBIAN-CVE-2022-33967
Published 20-07-2022Last modified 03-11-2025

Vulnerability summary

CVE-2022-33967 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in denx software engineering u-boot. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.56%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 3
DLA-4150-1SUSE-SU-2022:2653-1SUSE-SU-2022:2661-1USN-5764-1

Timeline

  1. 20-07-2022
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

squashfs filesystem implementation of U-Boot versions from v2020.10-rc2 to v2022.07-rc5 contains a heap-based buffer overflow vulnerability due to a defect in the metadata reading process. Loading a specially crafted squashfs image may lead to a denial-of-service (DoS) condition or arbitrary code execution.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.56% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (lists.denx.de)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • u-boot< 2022.07+dfsg-1
Denx1 product
  • u-boot2020.10:rc2 | 2020.10:rc3 | 2020.10:rc4 | 2020.10:rc5 | 2021.01 | 2021.01:rc1 | 2021.01:rc2 | 2021.01:rc3 | 2021.01:rc4 | 2021.01:rc5 | 2021.04:rc1 | 2021.04:rc2 | 2022.01 | 2022.01:rc1 | 2022.01:rc2 | 2022.01:rc3 | 2022.01:rc4 | 2022.04 | 2022.04:rc1 | 2022.04:rc2 | 2022.04:rc3 | 2022.04:rc4 | 2022.04:rc5 | 2022.07:rc1 | 2022.07:rc2 | 2022.07:rc3 | 2022.07:rc4 | 2022.07:rc5
Denx software engineering1 product
  • u-bootversions from v2020.10-rc2 to v2022.07-rc5
Ubuntu1 product
  • u-bootAll versions (No fix recorded) | < 2020.10+dfsg-1ubuntu0~18.04.3 | < 2021.01+dfsg-3ubuntu0~20.04.5 | < 2022.01+dfsg-2ubuntu2.3

4 vendors · 4 products

References

9 links