High severity · published Aug 2, 2021
CVE-2021-33198
In Go before 1.15.13 and 1.16.x before 1.16.5, there can be a panic for a large exponent to the math/big.Rat SetString or UnmarshalText method
7.5
CVSS
3.4%
EPSS
No
On KEV
Description
In Go before 1.15.13 and 1.16.x before 1.16.5, there can be a panic for a large exponent to the math/big.Rat SetString or UnmarshalText method.
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)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
GO · Golang
before 1.15.13; 1.16.0 before 1.16.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33198
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33198
Third Party Advisory
https://groups.google.com/g/golang-announce
Exploit
https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI
Third Party Advisory
https://security.gentoo.org/glsa/202208-02
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