CVE-2023-52435
kernel: net: prevent mss overflow in skb_segment()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 20, 2024
Updated · November 21, 2025
Description
A flaw was found in the Linux kernel’s net/core/skbuff.c subsystem. The GSO_BY_FRAGS is a forbidden value and allows the following computation in skb_segment() to reach it. The : mss = mss * partial_segs and many initial mss values can lead to a bad final result. Limit the segmentation so that the new mss value is smaller than GSO_BY_FRAGS.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE not specified