CVE-2019-6488

HIGH

glibc < 2.28 - Denial of Service via x32 Architecture Size Handling

Title source: llm

Description

The string component in the GNU C Library (aka glibc or libc6) through 2.28, when running on the x32 architecture, incorrectly attempts to use a 64-bit register for size_t in assembly codes, which can lead to a segmentation fault or possibly unspecified other impact, as demonstrated by a crash in __memmove_avx_unaligned_erms in sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy.

References (3)

Core 3

Core References

Third Party Advisory vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/106671

Issue Tracking, Third Party Advisory x_refsource_misc

https://sourceware.org/bugzilla/show_bug.cgi?id=24097

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202006-04

Scores

CVSS v3 7.8

EPSS 0.0015

EPSS Percentile 35.0%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-404

Status published

Products (1)

gnu/glibc < 2.28

Published Jan 18, 2019

Tracked Since Feb 18, 2026