CVE-2020-5243

Denial of Service in uap-core when processing crafted User-Agent strings

State
Published
Severity
5.7 Medium
Published
Feb 20, 2020
Updated
Aug 4, 2024
Reserved
Jan 2, 2020

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.15.7 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
uap-coreua-parser
  • < 0.7.3Affected

References

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