CVE-2021-31525 – stdlib

Package

Manager: go
Name: stdlib
Vulnerable Version: >=0 <1.15.12

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.0001 pctl0.00817

Details

Panic due to large headers in net/http and golang.org/x/net/http/httpguts A malicious HTTP server or client can cause the net/http client or server to panic. ReadRequest and ReadResponse can hit an unrecoverable panic when reading a very large header (over 7MB on 64-bit architectures, or over 4MB on 32-bit ones). Transport and Client are vulnerable and the program can be made to crash by a malicious server. Server is not vulnerable by default, but can be if the default max header of 1MB is overridden by setting Server.MaxHeaderBytes to a higher value, in which case the program can be made to crash by a malicious client. This also affects golang.org/x/net/http2/h2c and HeaderValuesContainsToken in golang.org/x/net/http/httpguts.

Metadata

Created: 2022-07-15T23:04:18Z
Modified: 2024-05-20T16:03:47Z
Source: https://osv-vulnerabilities
CWE IDs: N/A
Alternative ID: N/A
Finding: F067
Auto approve: 1