CVE Database›CVE-2020-1751

CVE-2020-1751

glibc: array overflow in backtrace functions for powerpc

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · January 20, 2020

Updated · October 14, 2026

Description

An out-of-bounds write vulnerability was found in glibc when handling signal trampolines on PowerPC. The backtrace function did not properly check the array bounds when storing the frame address resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Statement

This flaw did not affect the versions of glibc as shipped with Red Hat Enterprise Linux 5, 6, and 7, as they did not include the vulnerable code, which was introduced in a later version of the package.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-787 · Out-of-bounds Write