CVEvulnerability

CVE-2026-34155

7.2 HIGH Published 2026-03-31 Modified 2026-07-24 Official page ↗
Status
Analyzed
Published
2026-03-31
Last modified
2026-07-24
Assigner
[email protected]
CVSS 4.0 ([email protected])
7.2 HIGH — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-196, CWE-347

Description

RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the payload. Given such a bundle with a legitimate signature, an attacker can modify the part of the payload which is not covered by the signature. This issue has been patched in version 1.15.2.

Affected configurations

• pengutronix rauc (< 1.15.2)

Related

Weakness · CWE (2)

  • CWE-196 Unsigned to Signed Conversion Error weakness
  • CWE-347 Improper Verification of Cryptographic Signature weakness

References