HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| OALDERS | HTTP::Date | unaffected |
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No data.
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| Vendor | Product | Versions | ||||||||
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| Oalders | Http::date |
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Vendor Solution
Upgrade to HTTP::Date 6.08 or later, which rejects input longer than 64 characters before the date-parsing regexes run.
| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-8599-1 | HTTP-Date vulnerability |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.630% probability within 30 days)
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ssvc
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ssvc
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Oalders
Oalders http::date |
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| Vendors & Products |
Oalders
Oalders http::date |
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cvssV3_1
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| Description | HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date. parse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `\s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU. HTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service. | |
| Title | HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date | |
| Weaknesses | CWE-1333 | |
| References |
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