high7.5
CVE-2021-21317
Denial of Service in uap-core
Impact
## Impact 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. ## Patches Please update uap-core to >= v0.11.0 Downstream packages such as uap-python, uap-ruby etc which depend upon uap-core follow different version schemes.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | uap-core | < 0.11.0 | 0.11.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Uap-Core Project | Uap-Core | before 0.11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/ua-parser/uap-core/commit/dc9925d458214cfe87b93e35346980612f6ae96c
- https://github.com/ua-parser/uap-core/security/advisories/GHSA-p4pj-mg4r-x6v4
- https://www.npmjs.com/package/uap-core
- https://github.com/advisories/GHSA-p4pj-mg4r-x6v4
- https://nvd.nist.gov/vuln/detail/CVE-2021-21317