SQLite before 3.54.0 contains a use-after-free vulnerability in the R-Tree extension that allows attackers to make applications use freed heap memory by manipulating the %_node shadow table. Attackers can supply a database declaring %_node WITHOUT ROWID or with a RAISE(IGNORE) trigger so nodeWrite() hashes nodes as 0, crashing the process after node splits.
Weakness
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Hardened Images | RedHat | sqlite-main-3.54.1-1.hum1 | * |
Potential Mitigations
References
- https://abraxaslabs.tech/research/sqlite-rtree-rowid0
- https://github.com/sqlite/sqlite
- https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/rtree/rtree.c#L905
- https://github.com/sqlite/sqlite/commit/d21bd37c7cfc1b85b17a6703555f0926b6236e04
- https://sqlite.org/releaselog/3_54_0.html
- https://sqlite.org/src/info/6a9e1415659f9e75
- https://www.vulncheck.com/advisories/sqlite-before-3.54.0-use-after-free-in-r-tree-nodewrite