diff options
| author | lloyd <[email protected]> | 2014-01-18 23:30:03 +0000 |
|---|---|---|
| committer | lloyd <[email protected]> | 2014-01-18 23:30:03 +0000 |
| commit | 871a765023d21205a03e7906595bbee6dcc9c9e1 (patch) | |
| tree | 7a0482d594d7862f4dbe3fdd0b202b40b75a0e63 /src/lib/modes/cfb/cfb.cpp | |
| parent | bb4a85e2ade6a17a2c3f2577f2c24210fb2b3af8 (diff) | |
Avoid memory overread in last block of CFB encryption.
Diffstat (limited to 'src/lib/modes/cfb/cfb.cpp')
| -rw-r--r-- | src/lib/modes/cfb/cfb.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/modes/cfb/cfb.cpp b/src/lib/modes/cfb/cfb.cpp index 7721e1487..7b4aed3f0 100644 --- a/src/lib/modes/cfb/cfb.cpp +++ b/src/lib/modes/cfb/cfb.cpp @@ -99,7 +99,7 @@ void CFB_Encryption::update(secure_vector<byte>& buffer, size_t offset) // Assumes feedback-sized block except for last input copy_mem(&state[0], &state[shift], BS - shift); - copy_mem(&state[BS-shift], &buf[0], shift); + copy_mem(&state[BS-shift], &buf[0], took); cipher().encrypt(state, keystream_buf()); buf += took; |