CVE-2023-2860
kernel: ipv6: sr: out-of-bounds read when setting HMAC data
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 5, 2022
Updated · October 29, 2026
Description
An out-of-bounds read vulnerability was found in the SR-IPv6 implementation in the Linux kernel. The flaw exists within the processing of seg6 attributes. The issue results from the improper validation of user-supplied data, which can result in a read past the end of an allocated buffer. This flaw allows a privileged local user to disclose sensitive information on affected installations of the Linux kernel.
Statement
No Red Hat products are affected by this flaw, as the Segment Routing HMAC support (CONFIG_IPV6_SEG6_HMAC) is not included in any shipping kernel release.
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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE-125 · Out-of-bounds Read