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Server may crash parsing wrong or truncated BLR [CORE2576] #2986

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firebird-automations opened this issue Jul 27, 2009 · 5 comments
Closed

Server may crash parsing wrong or truncated BLR [CORE2576] #2986

firebird-automations opened this issue Jul 27, 2009 · 5 comments
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@asfernandes
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affect-version: 1.5.4 affect-version: 1.5.5 affect-version: 2.0.0 affect-version: 2.0.1 affect-version: 2.0.2 affect-version: 2.0.3 affect-version: 2.0.4 affect-version: 2.0.5 affect-version: 2.1.0 affect-version: 2.1.1 affect-version: 2.1.2 affect-version: 2.5 Alpha 1 affect-version: 2.5 Beta 1 component: engine fix-version: 2.5 RC1 priority: major qa: cannot be tested type: bug

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Submitted by: @asfernandes

BLR is read on a buffer and passed for parse without inform a length. The BLR is parsed until a blr_eoc is found.

If the buffer doesn't end with blr_eoc, the parser will continue reading unallocated memory. If it reads some byte in a not committed page memory, a read access violation will occur and the server will crash.

Commits: 4759973
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Modified by: @asfernandes

Component: Engine [ 10000 ]

assignee: Adriano dos Santos Fernandes [ asfernandes ]

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Modified by: @asfernandes

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.5 RC1 [ 10362 ]

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Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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Modified by: @pavel-zotov

QA Status: No test

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Modified by: @pavel-zotov

status: Closed [ 6 ] => Closed [ 6 ]

QA Status: No test => Cannot be tested

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@asfernandes asfernandes

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affect-version: 1.5.4 affect-version: 1.5.5 affect-version: 2.0.0 affect-version: 2.0.1 affect-version: 2.0.2 affect-version: 2.0.3 affect-version: 2.0.4 affect-version: 2.0.5 affect-version: 2.1.0 affect-version: 2.1.1 affect-version: 2.1.2 affect-version: 2.5 Alpha 1 affect-version: 2.5 Beta 1 component: engine fix-version: 2.5 RC1 priority: major qa: cannot be tested type: bug
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