Closed
Bug 1578238
Opened 5 years ago
Closed 5 years ago
CKM_AES_GCM succeeds with invalid tag sizes -- may lead to memory bugs
Categories
(NSS :: Libraries, defect, P1)
NSS
Libraries
Tracking
(Not tracked)
RESOLVED
FIXED
3.47
People
(Reporter: guidovranken, Assigned: marcus.apb)
Details
(Keywords: csectype-bounds, sec-audit)
Attachments
(2 files)
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Steps to reproduce:
CKM_AES_GCM with tag size = 1024
Actual results:
Call succeeds and the memory region that is expected to contain the tag, is partially uninitialized.
Expected results:
Call must fail.
Please see attached proof of concept for clarification.
From a cursory inspection Firefox, SRTP, and NSS SSL appear not vulnerable. Marking this as a security problem in case any other users of NSS are vulnerable.
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Updated•5 years ago
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Assignee: nobody → marcus.apb
Status: UNCONFIRMED → ASSIGNED
Ever confirmed: true
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Assignee | |
Updated•5 years ago
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Keywords: csectype-bounds
Priority: -- → P1
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Assignee | |
Comment 1•5 years ago
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Comment 2•5 years ago
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I don't see any reason to uplift this to Beta or ESR - please push back if you disagree. Otherwise let's plan to land it this week.
Keywords: checkin-needed
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Comment 3•5 years ago
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Status: ASSIGNED → RESOLVED
Closed: 5 years ago
Keywords: checkin-needed
Resolution: --- → FIXED
Target Milestone: --- → 3.47
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Updated•5 years ago
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Group: crypto-core-security → core-security-release
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Updated•4 years ago
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Group: core-security-release
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Description
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