Bug 2235656 (CVE-2022-48570)

Summary:	CVE-2022-48570 cryptopp: timing side channel in ECDSA signature generation
Product:	[Other] Security Response	Reporter:	Vipul Nair <vinair>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:	2235657, 2235658
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Description Vipul Nair 2023-08-29 12:37:49 UTC

Crypto++ through 8.4 contains a timing side channel in ECDSA signature generation. Function FixedSizeAllocatorWithCleanup could write to memory outside of the allocation if the allocated memory was not 16-byte aligned. NOTE: this issue exists because the CVE-2019-14318 fix was intentionally removed for functionality reasons.

https://github.com/weidai11/cryptopp/releases/tag/CRYPTOPP_8_4_0
https://github.com/weidai11/cryptopp/issues/992

Comment 1 Vipul Nair 2023-08-29 12:38:08 UTC

Created cryptopp tracking bugs for this issue:

Affects: epel-all [bug 2235657]

Comment 2 Vipul Nair 2023-08-29 12:39:07 UTC

Created cryptopp tracking bugs for this issue:

Affects: fedora-all [bug 2235658]