CVE-2020-5243

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Source
https://cve.org/CVERecord?id=CVE-2020-5243
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5243.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-5243
Aliases
Downstream
Published
2020-02-21T00:15:10.960Z
Modified
2026-03-10T21:51:38.234874Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This has been patched in uap-core 0.7.3.

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
e5abfd12fc8ddf14d2aa28cb8d36234ca7320e7c
Fixed
0afd61ed85396a3b5316f18bfd1edfaadf8e88e1
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.7.3"
        }
    ]
}

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
v0.6.0
v0.6.1
v0.6.11
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.6.8
v0.6.9
v0.7.0
v0.7.1
v0.7.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5243.json"