summaryrefslogtreecommitdiffstats
path: root/docs/v2.3.6-ReleaseNotes
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--docs/v2.3.6-ReleaseNotes56
1 files changed, 56 insertions, 0 deletions
diff --git a/docs/v2.3.6-ReleaseNotes b/docs/v2.3.6-ReleaseNotes
new file mode 100644
index 0000000..deb975e
--- /dev/null
+++ b/docs/v2.3.6-ReleaseNotes
@@ -0,0 +1,56 @@
+Cryptsetup 2.3.6 Release Notes
+==============================
+Stable bug-fix release with minor extensions.
+
+All users of cryptsetup 2.x and later should upgrade to this version.
+
+Changes since version 2.3.5
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* integritysetup: Fix possible dm-integrity mapping table truncation.
+
+ While integritysetup in standalone mode (no encryption) was not
+ designed to provide keyed (and cryptographically strong) data
+ integrity protection, some options can use such algorithms (HMAC).
+
+ If a key is used, it is directly sent to the kernel dm-integrity as
+ a mapping table option (no key derivation is performed).
+ For HMAC, such a key could be quite long (up to 4096 bytes in
+ integritysetup CLI).
+
+ Unfortunately, due to fixed buffers and not correctly checking string
+ truncation, some parameter combinations could cause truncation
+ of the dm-integrity mapping table.
+ In most cases, the table was rejected by the kernel.
+ The worst possible case was key truncation for HMAC options
+ (internal_hash and journal_mac dm-integrity table options).
+
+ This release fixes possible truncation and also adds more sanity
+ checks to reject truncated options.
+ Also, integritysetup now mentions maximal allowed key size
+ in --help output.
+
+ For old standalone dm-integrity devices where the key length was
+ truncated, you have to modify (shorten) --integrity-key-size
+ resp. --journal-integrity-key-size option now.
+
+ This bug is _not_ present for dm-crypt/LUKS, LUKS2 (including
+ integrity protection), or dm-verity devices; it affects only
+ standalone dm-integrity with HMAC integrity protection.
+
+* cryptsetup: Backup header can be used to activate TCRYPT device.
+ Use --header option to specify the header.
+
+* cryptsetup: Avoid LUKS2 decryption without detached header.
+ This feature will be added later and is currently not supported.
+
+* Additional fixes and workarounds for common warnings produced
+ by some static analysis tools (like gcc-11 analyzer) and additional
+ code hardening.
+
+* Fix standalone libintl detection for compiled tests.
+
+* Add Blake2b and Blake2s hash support for crypto backends.
+ Kernel and gcrypt crypto backend support all variants.
+ OpenSSL supports only Blake2b-512 and Blake2s-256.
+ Crypto backend supports kernel notation e.g. "blake2b-512".