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litecoin/doc/release-notes-litecoin.md

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Litecoin Core version 0.21.4 is now available from:

https://download.litecoin.org/litecoin-0.21.4/.

This is a new patch version release that includes, new features and important security updates.

Please report bugs using the issue tracker at GitHub:

https://github.com/litecoin-project/litecoin/issues

Notable changes

Important Security Updates

This release contains fixes for the following security vulnerabilities:

  • CVE-2024-35202, which allows remote attackers to cause a denial of service (blocktxn message-handling assertion and node exit) by including transactions in a blocktxn message that are not committed to in a block's merkle root. FillBlock can be called twice for one PartiallyDownloadedBlock instance.

    • 5d4a2e5: backported from Bitcoin Core (a8897f6)

  • Hindered block propagation due to mutated blocks, where a peer could send mutated blocks which could clear the download state of other peers that also announced block, hindering block propagation.

    • dab3bb7: backported from Bitcoin Core (dbfc748)

  • Infinite loop bug in miniupnp dependency, which could be exploited by an attacker on the local network to trigger an OOM.

    • 16ba8b8: backported from Bitcoin Core (fa2a5b8)

Bug fixes

  • 0d04e75: default -peerblockfilters and -blockfilterindex to off when pruning is enabled

Test related fixes

  • 7d9fea0: fix functional tests that were broken by changes in 0.21.3

Credits

Thanks to everyone who directly contributed to this release: