CVE-2018-20164

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-20164
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20164.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-20164
Aliases
Downstream
Published
2019-02-13T14:29:00.240Z
Modified
2025-11-20T10:48:37.826934Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

An issue was discovered in regex.yaml (aka regexes.yaml) in UA-Parser UAP-Core before 0.6.0. A Regular Expression Denial of Service (ReDoS) issue allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to a value containing a long digit string. (The UAP-Core project contains the vulnerability, propagating to all implementations.)

References

Affected packages

Git / github.com/ua-parser/uap-core

Affected ranges

Type
GIT
Repo
https://github.com/ua-parser/uap-core
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
010ccdc7303546cd22b9da687c29f4a996990014
Fixed
156f7e12b215bddbaf3df4514c399d683e6cdadc

Affected versions

java-1.*

java-1.2.2
java-1.3.0

php-3.*

php-3.3

Other

semver

v0.*

v0.1.0
v0.1.1
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.3.0
v0.3.1
v0.3.2
v0.3.4
v0.5.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20164.json"