HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language...
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| https://cpan.org/modules | HTTP-Headers-ActionPack |
< 0.10 |
0.10 |
Original description The description as published by the source.
HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions.
_language_match interpolates each Accept-Language range into the pattern /^$range\-/i without escaping it, so regular expression syntax in the header reaches the regex engine. A 12-byte range such as (a?|b?){26}z backtracks for seconds, and each increment of the quantifier doubles the time. An invalid range such as ( fails to compile.
A remote attacker can exhaust CPU, or make choose_language die, in any application that passes an untrusted Accept-Language header to it.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- web metacpan.org
- web github.com
- web nvd.nist.gov
- web github.com
- web openwall.com