Bug 1845978 (CVE-2020-7663)
Summary: | CVE-2020-7663 rubygem-websocket-extensions: ReDoS vulnerability in Sec-WebSocket-Extensions parser | ||
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Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | unspecified | CC: | akarol, bbuckingham, bcourt, bkearney, btotty, dmetzger, gmccullo, gtanzill, hhudgeon, jaruga, jfrey, jhardy, lzap, mmccune, nmoumoul, obarenbo, rchan, rjerrido, roliveri, ruby-packagers-sig, simaishi, smallamp, sokeeffe |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | websocket-extensions-0.1.5 | Doc Type: | If docs needed, set a value |
Doc Text: |
A flaw was found in the websocket-extensions ruby module in versions prior to 0.1.5. The parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and another character. When abused by an attacker, a Regex denial of service on a single-threaded server could occur. The highest threat from this vulnerability is to system availability.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2020-10-27 14:21:45 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 1845979, 1846861 | ||
Bug Blocks: | 1845983 |
Description
Guilherme de Almeida Suckevicz
2020-06-10 14:14:43 UTC
Created rubygem-websocket-extensions tracking bugs for this issue: Affects: fedora-all [bug 1845979] This flaw is also present in the websocket-extensions-node library, which uses an identical parser. https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237 Vulnerability in javascript library mentioned above is CVE-2020-7662 External References: https://github.com/faye/websocket-extensions-ruby/security/advisories/GHSA-g6wq-qcwm-j5g2 Statement: Red Hat CloudForms 4.7 (CFME 5.10) is in the maintenance phase and we will not be fixing Medium/Low impact security bugs. Reference: https://access.redhat.com/support/policy/updates/cloudforms Red Hat Satellite 6 ships affected RubyGem Websocket-extensions, however, product is not vulnerable to the flaw. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification This issue has been addressed in the following products: Red Hat Satellite 6.7 for RHEL 8 Via RHSA-2020:4366 https://access.redhat.com/errata/RHSA-2020:4366 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-7663 |