Bug 1820667 (CVE-2020-11104)

Summary:	CVE-2020-11104 cereal: serializing long double variables leaks uninitialized memory
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	junghans
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-03 16:32:01 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:	1820668, 1820669
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2020-04-03 14:40:24 UTC

An issue was discovered in USC iLab cereal through 1.3.0. Serialization of an (initialized) C/C++ long double variable into a BinaryArchive or PortableBinaryArchive leaks several bytes of stack or heap memory, from which sensitive information (such as memory layout or private keys) can be gleaned if the archive is distributed outside of a trusted context.

Reference:
https://github.com/USCiLab/cereal/issues/625

Comment 1 Guilherme de Almeida Suckevicz 2020-04-03 14:40:45 UTC

Created cereal tracking bugs for this issue:

Affects: epel-7 [bug 1820669]
Affects: fedora-all [bug 1820668]

Comment 2 Product Security DevOps Team 2020-04-03 16:32:01 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.