CVE-2019-6488 is a vulnerability in the GNU C Library (glibc) affecting versions through 2.28 when running on the x32 architecture. It stems from an incorrect attempt to use a 64-bit register for size_t in assembly code, leading to a segmentation fault during operations like memcpy. This vulnerability has a high CVSS score of 7.8, indicating a local attack vector with low complexity and potential for high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.28CPE matchmatch criteria | cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2019-6488
Sep 8, 2020glibc: Incorrect attempt to use a 64-bit register for size_t in assembly codes results in segmentation fault
Jan 16, 2019The 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.
Jan 8, 2019