In lighttpd 1.4.46 through 1.4.63, the mod_extforward_Forwarded function of the mod_extforward plugin has a stack-based buffer overflow (4 bytes representing -1), as demonstrated by remote denial of service (daemon crash) in a non-default configuration. The non-default configuration requires handling of the Forwarded header in a somewhat unusual manner. Also, a 32-bit system is much more likely to be affected than a 64-bit system.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade lighttpd | Mar 26, 2024 | Jan 6, 2022 |
| Debian | — | Upgrade lighttpd | Jan 13, 2022 | Jan 6, 2022 |
| Http Lighttpd | — | Upgrade to the latest version of lighttpd | Mar 10, 2022 | Jan 6, 2022 |
| Suse | — | Upgrade lighttpd-mod_webdavUpgrade lighttpd-mod_authn_pamUpgrade lighttpd-mod_authn_gssapiUpgrade lighttpd-mod_vhostdb_mysqlUpgrade lighttpd-mod_maxminddbUpgrade lighttpd-mod_authn_saslUpgrade lighttpd-mod_magnetUpgrade lighttpdUpgrade lighttpd-mod_vhostdb_pgsqlUpgrade lighttpd-mod_vhostdb_dbiUpgrade lighttpd-mod_vhostdb_ldapUpgrade lighttpd-mod_rrdtoolUpgrade lighttpd-mod_authn_ldap | Feb 3, 2022 | Jan 6, 2022 |
| Ubuntu | — | Upgrade lighttpd | Mar 22, 2023 | Jan 6, 2022 |
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