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Bug 683004 (CVE-2019-9900)

Summary: net-misc/istioctl: Authorization bypass via null characters injection in HTTP/1.x
Product: Gentoo Security Reporter: Agostino Sarubbo <ago>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: RESOLVED INVALID    
Severity: trivial CC: mrueg
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
URL: https://bugzilla.redhat.com/show_bug.cgi?id=1698020
Whiteboard: ~3 [ebuild]
Package list:
Runtime testing required: ---

Description Agostino Sarubbo gentoo-dev 2019-04-10 07:12:35 UTC
From ${URL} :

A flaw was found in Envoy 1.9.0 and older. When parsing HTTP/1.x header values, Envoy does not reject embedded zero characters (NUL, ASCII 
0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, 
gaining access to unauthorized resources.

Upstream issue:

https://github.com/envoyproxy/envoy/issues/6434

References:

https://istio.io/blog/2019/announcing-1.1.2/



@maintainer(s): since the package or the affected version has never been marked as stable, we don't need to stabilize it. After the bump, please remove the affected versions from the tree.
Comment 1 Manuel RĂ¼ger (RETIRED) gentoo-dev 2019-04-10 09:15:18 UTC
We're not packaging envoy here but only the istioctl command binary. Not vulnerable.