CVE-2017-5897
kernel: ip6_gre: Invalid reads in ip6gre_err
Severity
LowRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 5, 2017
Updated · May 13, 2026
Description
An issue was found in the Linux kernel ipv6 implementation of GRE tunnels which allows a remote attacker to trigger an out-of-bounds access. At this time we understand no trust barrier has been crossed and there is no security implications in this flaw.
Statement
Red Hat Enterprise Linux 5 and 6 are not affected as they do not include this code.
Red Hat Enterprise Linux 7, MRG and realtime kernels contain the code, but are not affected. At this time we do not believe there is a denial of service, memory leak, privilege escalation or trust barrier crossed. The kernel may attribute errors in system logs to the wrong tunnel. If you believe this is in error and have evidence or thoughts to the contrary please contact Red Hat Security Team.
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 3.0 · 3.7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-125 · Out-of-bounds Read