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[BUG] Faulty DATETIME ticksSinceMidnight overflow check #34828

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Marcono1234 opened this issue May 7, 2023 · 0 comments · Fixed by #34876
Closed
1 of 3 tasks

[BUG] Faulty DATETIME ticksSinceMidnight overflow check #34828

Marcono1234 opened this issue May 7, 2023 · 0 comments · Fixed by #34876
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@mkrueger
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Client This issue points to a problem in the data-plane of the library. Cosmos customer-reported Issues that are reported by GitHub users external to the Azure organization. needs-team-triage This issue needs the team to triage. question The issue doesn't require a change to the product in order to be resolved. Most issues start as that

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@Marcono1234
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Marcono1234 commented May 7, 2023 •
edited by kushagraThapar
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Describe the bug
The Integer.MAX_VALUE < ticksSinceMidnight check here is faulty:

azure-sdk-for-java/sdk/cosmos/azure-cosmos-encryption/src/main/java/com/azure/cosmos/encryption/implementation/mdesrc/cryptography/SqlSerializerUtil.java

Line 521 in e61b855

if (8 != decryptedValue.length || Integer.MAX_VALUE < ticksSinceMidnight) {

ticksSinceMidnight is an int, so it cannot be > Integer.MAX_VALUE. Maybe the solution here is to change ticksSinceMidnight to long (and adjust the calculation from * 10 to * 10L to avoid overflow there).

I am not familiar with this code though and am not planning to submit a pull request.

Side note: This looks suspiciously similar to the same bug reported in microsoft/mssql-jdbc#2124.

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@github-actions github-actions bot added Client This issue points to a problem in the data-plane of the library. Cosmos customer-reported Issues that are reported by GitHub users external to the Azure organization. needs-team-triage This issue needs the team to triage. question The issue doesn't require a change to the product in order to be resolved. Most issues start as that labels May 7, 2023
mkrueger added a commit to mkrueger/azure-sdk-for-java that referenced this issue May 10, 2023
@mkrueger
Fixed ticksSinceMidnight check.
cf4cccc 
Doesn't make sense because that is always false there is no int greater
than MAX_VALUE.
Since the byte array length is checked it only makes sense to check that
the int is positive.

Fixes Azure#34828
@mkrueger mkrueger mentioned this issue May 10, 2023
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5 tasks
mkrueger added a commit to mkrueger/azure-sdk-for-java that referenced this issue May 10, 2023
@mkrueger
Fixed ticksSinceMidnight check.
67b53f9 
Casting to long should fix the issue. Added a check for negative
numbers.

Fixes Azure#34828
FabianMeiswinkel pushed a commit that referenced this issue Jun 9, 2023
@mkrueger
Fixed ticksSinceMidnight check. (#34876)
43f68e7 
Casting to long should fix the issue. Added a check for negative
numbers.

Fixes #34828
@github-actions github-actions bot locked and limited conversation to collaborators Sep 7, 2023
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@mkrueger mkrueger

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Client This issue points to a problem in the data-plane of the library. Cosmos customer-reported Issues that are reported by GitHub users external to the Azure organization. needs-team-triage This issue needs the team to triage. question The issue doesn't require a change to the product in order to be resolved. Most issues start as that
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Fixed ticksSinceMidnight validation check. mkrueger/azure-sdk-for-java
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@mkrueger @Marcono1234