PT-2020-13771 · Pengutronix · Barebox

Published 2020-06-07 · Updated 2020-06-10 · CVE-2020-13910

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Pengutronix Barebox versions prior to v2020.05.0

Description The issue is related to an out-of-bounds read in the nfs read reply function located in net/nfs.c. This occurs because a field from an incoming network packet is used directly as a length field without any bounds checking, potentially leading to unauthorized data access.

Recommendations For versions prior to v2020.05.0, consider restricting access to the nfs read reply function in net/nfs.c to minimize the risk of exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2020-13910

Affected Products

Barebox

References · 4

• https://git.pengutronix.de/cgit/barebox/commit/net/nfs.c?h=next&id=c0f0cbd1759a6ca6cbda4001dff5764f6633c825 · Patch
• https://osv.dev/vulnerability/CVE-2020-13910 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-13910 · Security Note
• https://t.me/cvenotify/4236 · Telegram Post