An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-05-18T16:00:00

Updated: 2024-08-05T21:13:49.212Z

Reserved: 2018-05-18T00:00:00

Link: CVE-2017-18269

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-05-18T16:29:00.227

Modified: 2023-11-07T02:41:51.483

Link: CVE-2017-18269

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-12-24T00:00:00Z

Links: CVE-2017-18269 - Bugzilla