High severity · published Dec 26, 2022
CVE-2021-38561
golang.org/x/text/language in golang.org/x/text before 0.3.7 can panic with an out-of-bounds read during BCP 47 language tag parsing
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
golang.org/x/text/language in golang.org/x/text before 0.3.7 can panic with an out-of-bounds read during BCP 47 language tag parsing. Index calculation is mishandled. If parsing untrusted user input, this can be used as a vector for a denial-of-service attack.
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)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
Text · Golang
before 0.3.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38561
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38561
Patch
https://deps.dev/advisory/OSV/GO-2021-0113
Mailing List
https://go.googlesource.com/text/+/383b2e75a7a4198c42f8f87833eefb772868a56f
Mailing List
https://groups.google.com/g/golang-announce
Product
https://pkg.go.dev/golang.org/x/text/language
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In x/text in Go before v0.3.5, a "slice bounds out of range" panic occurs in language.ParseAcceptLanguage while processing a BCP 47 tag
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The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run…