| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| webmail | ≥ 1.6.0, < 1.6.20≥ 1.7.0, < 1.7.5 | 1.6.201.7.5 |
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in rcube_session::unserialize(). A session key prefixed with “!” was treated as having no value, and the reconstructed serialized string was emitted with a key but no corresponding value, desynchronizing the remainder of the input so that following session data was interpreted as a serialized value. This yields a PHP object injection primitive for an attacker able to influence stored session data. Upstream fixed this in the commit “Fix object injection primitive in rcube_session::unserialize() via “!”-prefixed session keys”, which rejects such keys.
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