CVE-2022-22707
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.
Does this matter?
Lower severity and a low EPSS score (8.97%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.97% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- lighttpd/lighttpd · debian/debian linux
- Source
- cve@mitre.org
References
- https://redmine.lighttpd.net/issues/3134Exploit, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5040Third Party Advisory
- https://redmine.lighttpd.net/issues/3134Exploit, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5040Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.