CVE-2020-1751
glibc: array overflow in backtrace functions for powerpc
Severity
ModerateRed Hat Product Security
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 · 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 · Out-of-bounds Write