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Fencer Vulns
critical 9.8

CVE-2022-34835 json

In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables th…

published 2022-06-29 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37741

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

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.

Patch / fix

  • Siemens RUGGEDCOM ROX MX5000 V2.17.1
  • Siemens RUGGEDCOM ROX MX5000RE V2.17.1
  • Siemens RUGGEDCOM ROX RX1400 V2.17.1
  • Siemens RUGGEDCOM ROX RX1500 V2.17.1
  • Siemens RUGGEDCOM ROX RX1501 V2.17.1
  • Siemens RUGGEDCOM ROX RX1510 V2.17.1
  • Siemens RUGGEDCOM ROX RX1511 V2.17.1
  • Siemens RUGGEDCOM ROX RX1512 V2.17.1
  • Siemens RUGGEDCOM ROX RX1524 V2.17.1
  • Siemens RUGGEDCOM ROX RX1536 V2.17.1
  • Siemens RUGGEDCOM ROX RX5000 V2.17.1
  • u-boot Debian 14, Debian 13, Debian 12 2022.07+dfsg-1

debian advisories DEBIAN-CVE-2022-34835

  • u-boot Ubuntu 18.04 LTS 2020.10+dfsg-1ubuntu0~18.04.3
  • u-boot Ubuntu 20.04 LTS 2021.01+dfsg-3ubuntu0~20.04.5
  • u-boot Ubuntu 22.04 LTS 2022.01+dfsg-2ubuntu2.3

ubuntu advisories UBUNTU-CVE-2022-34835

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • u-boot SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLES 15 SP1-BCL +3 more 2019.01-150100.7.16.1
  • u-boot-rpi3 SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS, SLE High Performance Computing 15 SP1-ESPOS +1 more 2019.01-150100.7.16.1
  • u-boot SLES for SAP 12 SP5, SLES 12 SP5 2019.01-5.11.1
  • u-boot-rpi3 SLES for SAP 12 SP5, SLES 12 SP5 2019.01-5.11.1
  • u-boot SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 2021.10-150400.4.8.1
  • u-boot-rpi3 openSUSE Leap 15.4 2021.10-150400.4.8.1
  • u-boot-rpi4 openSUSE Leap 15.4 2021.10-150400.4.8.1
  • u-boot-hikey openSUSE Leap 15.4 2021.10-150400.4.8.1

suse advisories SUSE-SU-2022:2712-1SUSE-SU-2022:2667-1SUSE-SU-2022:2666-1SUSE-SU-2022:2661-1SUSE-SU-2022:2654-1SUSE-SU-2022:2653-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-134-16 updated cvss 9.8

Siemens Ruggedcom Rox

  • Siemens RUGGEDCOM ROX MX5000 < 2.17.1 Siemens RUGGEDCOM ROX MX5000RE < 2.17.1 Siemens RUGGEDCOM ROX RX1400 < 2.17.1 Siemens RUGGEDCOM ROX RX1500 < 2.17.1 Siemens RUGGEDCOM ROX RX1501 < 2.17.1 Siemens RUGGEDCOM ROX RX1510 < 2.17.1
    +5 more products
    Siemens RUGGEDCOM ROX RX1511 < 2.17.1 Siemens RUGGEDCOM ROX RX1512 < 2.17.1 Siemens RUGGEDCOM ROX RX1524 < 2.17.1 Siemens RUGGEDCOM ROX RX1536 < 2.17.1 Siemens RUGGEDCOM ROX RX5000 < 2.17.1
    affected: fixed in V2.17.1 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409 referenced PoC, tagged "exploit" by a source, unverified
  • lists.denx.de https://lists.denx.de/pipermail/u-boot/2022-June/486113.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Siemens RUGGEDCOM ROX MX5000
  • Siemens RUGGEDCOM ROX MX5000RE
  • Siemens RUGGEDCOM ROX RX1400
  • Siemens RUGGEDCOM ROX RX1500
  • Siemens RUGGEDCOM ROX RX1501
  • Siemens RUGGEDCOM ROX RX1510
  • Siemens RUGGEDCOM ROX RX1511
  • Siemens RUGGEDCOM ROX RX1512
  • Siemens RUGGEDCOM ROX RX1524
  • Siemens RUGGEDCOM ROX RX1536
  • Siemens RUGGEDCOM ROX RX5000

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.