CVE-2021-37606

CVSS V2 Medium 5 CVSS V3 Medium 5.3

Description

Meow hash 0.5/calico does not sufficiently thwart key recovery by an attacker who can query whether there's a collision in the bottom bits of the hashes of two messages, as demonstrated by an attack against a long-running web service that allows the attacker to infer collisions by measuring timing differences.

Overview

CVE ID
CVE-2021-37606

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2021-07-30T14:15:22

Last Modified Date
2021-08-10T18:18:44

Weakness Enumerations

CWE	URL
CWE-327	http://cwe.mitre.org/data/definitions/327.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:meow_hash_project:meow_hash:0.5:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
5.3

Base Severity
MEDIUM

Exploitability Score
3.9

Impact Score
1.4

References

Reference URL	Reference Tags
https://peter.website/meow-hash-cryptanalysis	Third Party Advisory
https://news.ycombinator.com/item?id=27978878	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-37606
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37606

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:57:50				Added to TrackCVE
2022-12-05 07:05:05	2021-07-30T14:15Z	2021-07-30T14:15:22	CVE Published Date	updated
2022-12-05 07:05:05		2021-08-10T18:18:44	CVE Modified Date	updated
2022-12-05 07:05:05		Analyzed	Vulnerability Status	updated