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Fencer Intel
medium —

GHSA-p2g9-94wh-65c2 json

Space bug in `clean_text`

published 4y ago modified 3y ago also RUSTSEC-2022-0003

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

An incorrect mapping from HTML specification to ASCII codes was used. Because HTML treats the Form Feed as whitespace, code like this has an injection bug:

let html = format!("<div title={}>", clean_text(user_supplied_string));

Applications are not affected if they quote their attributes, or if they don't use `clean_text` at all.

Patch / fix

  • crates.io ammonia 3.1.3

Is GHSA-p2g9-94wh-65c2 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Affected packages

ecosystem package affected fixed in
crates.io ammonia
>=3.0.0, <3.1.3
3.1.3

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.