Buffer overflow in Denx U-Boot
CVE-2022-34835
In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.023 (83.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.023 · change: +0.001
Affected products
- Denx U-Boot — versions 2022.07
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.denx.de/pipermail/u-boot/2022-June/486113.html (Exploit, Patch, Vendor Advisory)
- github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409 (Exploit, Patch, Third Party Advisory)
- source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409 (Patch, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2022-34835?
- CVE-2022-34835 is a critical-severity vulnerability in Denx U-Boot, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-06-30.
- How severe is CVE-2022-34835?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-34835 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.