CVE-2022-48566

Ubuntu Security Notice USN-6891-1

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in hmac.compare_digest.

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 18.04 LTS. It was discovered that Python incorrectly used regular expressions vulnerable to catastrophic backtracking. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

Poc

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-07-23 CVE Reserved
2023-08-22 CVE Published
2024-10-03 CVE Updated
2024-10-03 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (4)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html	Mailing List
https://security.netapp.com/advisory/ntap-20231006-0013	Third Party Advisory

URL	Date	SRC
https://bugs.python.org/issue40791	2024-10-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				< 3.6.13 Search vendor "Python" for product "Python" and version " < 3.6.13"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.7.0 < 3.7.10 Search vendor "Python" for product "Python" and version " >= 3.7.0 < 3.7.10"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.8.0 < 3.8.7 Search vendor "Python" for product "Python" and version " >= 3.8.0 < 3.8.7"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.9.0 < 3.9.1 Search vendor "Python" for product "Python" and version " >= 3.9.0 < 3.9.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		vmware_vsphere		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		windows		Affected
Netapp Search vendor "Netapp"		Converged Systems Advisor Agent Search vendor "Netapp" for product "Converged Systems Advisor Agent"				-		-		Affected