Описание
The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It will read from the connection until it finds a newline. Since no limits are implemented in the code, a deliberately malformed V1 header could be used to exhaust memory in a server process using this code - and create a DoS. This can be exploited by sending a stream starting with PROXY and continuing to send data (which does not contain a newline) until the target stops acknowledging. The risk here is small, because only trusted sources should be allowed to send proxy protocol headers.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | not-affected | code not present |
| esm-apps/jammy | needed | |
| esm-apps/noble | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| groovy | DNE | |
| hirsute | ignored | end of life |
| impish | ignored | end of life |
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EPSS
4 Medium
CVSS2
4.4 Medium
CVSS3
Связанные уязвимости
The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It will read from the connection until it finds a newline. Since no limits are implemented in the code, a deliberately malformed V1 header could be used to exhaust memory in a server process using this code - and create a DoS. This can be exploited by sending a stream starting with PROXY and continuing to send data (which does not contain a newline) until the target stops acknowledging. The risk here is small, because only trusted sources should be allowed to send proxy protocol headers.
The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable ...
github.com/pires/go-proxyproto denial of service vulnerability
EPSS
4 Medium
CVSS2
4.4 Medium
CVSS3