Critical severity · published Jun 30, 2022
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…
9.8
CVSS
2.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UB
U-boot · Denx
before 2022.07; 2022.07; 2022.07; 2022.07; 2022.07; 2022.07 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-34835
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-34835
Exploit
https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
Exploit
https://lists.denx.de/pipermail/u-boot/2022-June/486113.html
Patch
https://source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-577017.html
More from U-boot
9.8
CVE-2026-29009
U-Boot < 2026.07-rc2 Buffer Overflow in nfs_readlink_reply() via NFS READLINK
9.8
CVE-2022-30767
nfs_lookup_reply in net/nfs.c in Das U-Boot through 2022.04 (and through 2022.07-rc2) has an unbounded memcpy with a failed length check, leading to a buffer overflow
9.8
CVE-2020-8432
In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function
9.8
CVE-2019-14204
An issue was discovered in Das U-Boot through 2019.07
9.8
CVE-2019-14203
An issue was discovered in Das U-Boot through 2019.07