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.
Published 2020-04-17 19:15:14
Updated 2023-01-27 18:34:36
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2020-1751

Exploit prediction scoring system (EPSS) score for CVE-2020-1751

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-1751

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.9
MEDIUM AV:L/AC:M/Au:N/C:P/I:P/A:C
3.4
8.5
NIST
5.1
MEDIUM CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
1.4
3.6
Red Hat, Inc.
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.0
5.9
NIST

CWE ids for CVE-2020-1751

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2020-1751

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