CVE & CISA-KEV Catalog

CVE-2020-1751

MEDIUM
5.1
CVSS v3
NVD

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.

How to fix

Remediation Available
glibcDebian
Fixed in:2.30-3CVE-2020-1751
Fixed in:2.30-3CVE-2020-1751
Fixed in:2.30-3CVE-2020-1751
Fixed in:2.30-3CVE-2020-1751
glibcUbuntu
Fixed in:2.23-0ubuntu11.2USN-4416-1
Fixed in:2.27-3ubuntu1.2USN-4416-1
libc6Ubuntu
Fixed in:2.23-0ubuntu11.2USN-4416-1
Fixed in:2.27-3ubuntu1.2USN-4416-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.54%probability of exploitation in 30 days
41stpercentile

Moderate risk: more likely to be exploited than 41% of all known CVEs.

References

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-22457Critical9.0100%KEV + RansomFix
CVE-2025-0282Critical9.0100%KEV + Ransom-
CVE-2015-3113Critical9.8100%KEVFix
CVE-2021-20038Critical9.8100%KEV + Ransom-
CVE-2023-4863High8.8100%KEVFix
CVE-2020-16040Medium6.5100%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.