medium5.7
CVE-2020-5243
uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Uap-Core Project | Uap-Core | before 0.7.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/ua-parser/uap-core/commit/0afd61ed85396a3b5316f18bfd1edfaadf8e88e1
- https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9p
- https://github.com/ua-parser/uap-core/commit/0afd61ed85396a3b5316f18bfd1edfaadf8e88e1
- https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9p