Vulnerability Details : CVE-2020-1751
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2020-1751
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
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
-
https://sourceware.org/bugzilla/show_bug.cgi?id=25423
25423 – (CVE-2020-1751) Array overflow in backtrace on powerpc (CVE-2020-1751)Issue Tracking;Third Party Advisory
-
https://usn.ubuntu.com/4416-1/
USN-4416-1: GNU C Library vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://security.gentoo.org/glsa/202006-04
glibc: Multiple vulnerabilities (GLSA 202006-04) — Gentoo securityThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751
1810719 – (CVE-2020-1751) CVE-2020-1751 glibc: array overflow in backtrace functions for powerpcIssue Tracking;Patch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20200430-0002/
CVE-2020-1751 GNU C Library (glibc) Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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