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Ubuntu.comUB:CVE-2020-23026

HistoryJan 03, 2022 - 12:00 a.m.

CVE-2020-23026

2022-01-0300:00:00

ubuntu.com

cve-2020-23026

dhrystone 2.1

null pointer dereference

denial of service

gcc-3.3

libstdc++5

u-boot

embedded copies

ubuntu

testsuite

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.4%

JSON

A NULL pointer dereference in the main() function dhry_1.c of dhrystone 2.1
causes a denial of service (DoS).

Notes

Author	Note
sbeattie	gcc-3.3 only provides libstdc++5
alexmurray	u-boot and gcc both contain embedded copies of dhrystone
rodrigo-zaiden	u-boot is not building with dhrystone in Ubuntu. gcc includes dhrystone in the testsuite, so there is no impact in the usability of gcc and can be ignored.

References

fossies.org/linux/privat/old/dhrystone-2.1.tar.gz/dhry_1.c

launchpad.net/bugs/cve/CVE-2020-23026

nvd.nist.gov/vuln/detail/CVE-2020-23026

security-tracker.debian.org/tracker/CVE-2020-23026

www.cve.org/CVERecord?id=CVE-2020-23026

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.4%

JSON

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