CVE-2020-1751

Summary

CVE	CVE-2020-1751
State	PUBLISHED
Assigner	redhat
Source Priority	CVE Program / NVD first with legacy fallback
Published	2020-04-17 19:15:14 UTC
Updated	2026-10-14 09:17:18 UTC
Description	An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, 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.

Primary CVSS: v3.1 7 HIGH from [email protected]

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

Problem Types: CWE-787 | CWE-787 CWE-787

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	7	HIGH	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	[email protected]	Secondary	5.1	MEDIUM	`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`
3.1	CNA	DECLARED	5.1	MEDIUM	`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`
2.0	[email protected]	Primary	5.9		`AV:L/AC:M/Au:N/C:P/I:P/A:C`

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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

Access Vector

Local

Access Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Complete

AV:L/AC:M/Au:N/C:P/I:P/A:C

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.04	All	All	All
Operating System	Canonical	Ubuntu Linux	19.10	All	All	All
Application	Gnu	Glibc	All	All	All	All
Operating System	Redhat	Enterprise Linux	8.0	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Red Hat	Glibc	affected 2.31	Not specified
ADP	Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	affected V3.1.0 V3.1.5 custom	Not specified
ADP	Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	affected V3.1.0 V3.1.5 custom	Not specified
ADP	Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	affected V3.1.0 V3.1.5 custom	Not specified
ADP	Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	affected V3.1.0 V3.1.5 custom	Not specified
ADP	Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	affected V3.1.0 V3.1.5 custom	Not specified

Reference	Source	Link	Tags
cert-portal.siemens.com/productcert/html/ssa-398330.html	0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	cert-portal.siemens.com
CVE-2020-1751 GNU C Library (glibc) Vulnerability in NetApp Products \| NetApp Product Security	af854a3a-2127-422b-91ae-364da2661108	security.netapp.com	Third Party Advisory
glibc: Multiple vulnerabilities (GLSA 202006-04) — Gentoo security	af854a3a-2127-422b-91ae-364da2661108	security.gentoo.org	Third Party Advisory
25423 – (CVE-2020-1751) Array overflow in backtrace on powerpc (CVE-2020-1751)	af854a3a-2127-422b-91ae-364da2661108	sourceware.org	Issue Tracking, Third Party Advisory
1810719 – (CVE-2020-1751) CVE-2020-1751 glibc: array overflow in backtrace functions for powerpc	af854a3a-2127-422b-91ae-364da2661108	bugzilla.redhat.com	Issue Tracking, Patch, Third Party Advisory
USN-4416-1: GNU C Library vulnerabilities \| Ubuntu security notices \| Ubuntu	af854a3a-2127-422b-91ae-364da2661108	usn.ubuntu.com	Third Party Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

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