CVE-2020-10029

MEDIUM

glibc < 2.32 - Out-of-bounds Write in Long Double Range Reduction

Title source: llm
STIX 2.1

Description

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

References (10)

Core 10
Core References
Mailing List, Third Party Advisory vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00033.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202006-04
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/4416-1/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
Exploit, Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=25487

Scores

CVSS v3 5.5
EPSS 0.0005
EPSS Percentile 15.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-787
Status published
Products (15)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 19.10
debian/debian_linux 10.0
fedoraproject/fedora 30
fedoraproject/fedora 31
fedoraproject/fedora 32
gnu/glibc < 2.32.0
netapp/active_iq_unified_manager
netapp/cloud_backup
... and 5 more
Published Mar 04, 2020
Tracked Since Feb 18, 2026