Upstream information

CVE-2021-32715 at MITRE

Description

hyper is an HTTP library for rust. hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a `Content-Length` header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such `Content-Length` headers, but forwards them, can result in "request smuggling" or "desync attacks". The flaw exists in all prior versions of hyper prior to 0.14.10, if built with `rustc` v1.5.0 or newer. The vulnerability is patched in hyper version 0.14.10. Two workarounds exist: One may reject requests manually that contain a plus sign prefix in the `Content-Length` header or ensure any upstream proxy handles `Content-Length` headers with a plus sign prefix.

SUSE information

Overall state of this security issue: Analysis

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.3
Vector AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.3 3.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Access Vector Network Network
Access Complexity Low High
Privileges Required None None
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact None Low
Integrity Impact Low None
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1188173 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE CaaS Platform 4.0 rust Affected
SUSE Enterprise Storage 6 rust Affected
SUSE Linux Enterprise High Performance Computing 15 LTSS rust Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS rust Affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 rust Affected
SUSE Linux Enterprise Server 15 LTSS rust Affected
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux rust Affected
SUSE Linux Enterprise Server 15 SP1 LTSS rust Affected
SUSE Linux Enterprise Server ESPOS 15 rust Affected
SUSE Linux Enterprise Server for SAP Applications 15 rust Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 rust Affected
SUSE Manager Proxy 4.0 rust Affected
SUSE Manager Retail Branch Server 4.0 rust Affected
SUSE Manager Server 4.0 rust Affected