CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
91.2%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | edge-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.13-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.14-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.15-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.16-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.17-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.18-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.19-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
Alpine | 3.20-main | noarch | lighttpd | < 1.4.64-r0 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
91.2%