CVE-2020-10029

MEDIUM
5.5
CVSS Score
Published: March 4, 2020 at 12:00 AM UTC
Updated: October 14, 2026 at 09:17 AM UTC
13 products affected across 8 vendorsDebian LinuxFedoraUbuntu Linux· also runs on 1 platform

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.32.0
Affected range stops below 2.32.0, so it looks safe — our inference, not a vendor statement
All versions
All versions
netapp-h410c (same device)
All versions

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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