CVE-2016-8632
kernel: TIPC subsystem: tipc_msg_build() doesn't validate MTU, may cause memory corruption.
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · November 7, 2016
Updated · November 21, 2025
Description
A flaw was found in the TIPC networking subsystem which could allow for memory corruption and possible privilege escalation. The flaw involves a system with an unusually low MTU (60) on networking devices configured as bearers for the TIPC protocol. An attacker could create a packet which will overwrite memory outside of allocated space and allow for privilege escalation.
Statement
This issue is rated as important. The affected code is not enabled on Red Hat Enterprise Linux 6 and 7 or MRG-2 kernels. The commit introducing the comment was not included in Red Hat Enterprise Linux 5.
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 2.0 · 6.8AV:L/AC:L/Au:S/C:C/I:C/A:C
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer