High severity · published Aug 9, 2022
CVE-2022-32189
Panic when decoding Float and Rat types in math/big
7.5
CVSS
2.8%
EPSS
No
On KEV
Description
A too-short encoded message can cause a panic in Float.GobDecode and Rat GobDecode in math/big in Go before 1.17.13 and 1.18.5, potentially allowing a denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
math/big · Go standard library
before 1.17.13; 1.18.0-0 before 1.18.5 · source: vendor
GO
GO · Golang
before 1.17.13; 1.18.0 before 1.18.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-32189
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-32189
Patch
https://go.dev/cl/417774
Exploit
https://go.dev/issue/53871
Mailing List
https://go.googlesource.com/go/+/055113ef364337607e3e72ed7d48df67fde6fc66
Mailing List
https://groups.google.com/g/golang-announce/c/YqYYG87xB10
Vendor Advisory
https://pkg.go.dev/vuln/GO-2022-0537