PT-2025-18430 · Linux+8 · Linux Kernel+8
Published
2025-04-10
·
Updated
2026-04-20
·
CVE-2025-37749
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue concerns a potential out-of-bounds access in the Linux kernel when processing short packets. Specifically, in the
ppp sync txmung function, there is a risk of accessing data beyond the bounds of the skb buffer when an incoming packet has an empty payload. This is demonstrated by an example where the skb struct contains a pppoe hdr with a length of 0x0, making it unsafe to access data[2]. The fix involves adding bound checking for skb data to prevent such out-of-bounds accesses.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu