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| author | John Kohl <jtkohl@mit.edu> | 1991-01-17 11:39:34 +0000 |
|---|---|---|
| committer | John Kohl <jtkohl@mit.edu> | 1991-01-17 11:39:34 +0000 |
| commit | 51346dec2af8ed67c4fa31ad4539720007d448c3 (patch) | |
| tree | 310b2a0208be93025c9b45a2dcfe4a9d45cbeab2 /src/lib | |
| parent | b7654b02cf09048ac5f7ec0c914380e76646dc3c (diff) | |
| download | krb5-51346dec2af8ed67c4fa31ad4539720007d448c3.tar.gz krb5-51346dec2af8ed67c4fa31ad4539720007d448c3.tar.xz krb5-51346dec2af8ed67c4fa31ad4539720007d448c3.zip | |
fix problem with referencing past end of array on byte-aligned
input
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@1634 dc483132-0cff-0310-8789-dd5450dbe970
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/crypto/md4/md4.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/lib/crypto/md4/md4.c b/src/lib/crypto/md4/md4.c index a1a397d84b..038f2d52f3 100644 --- a/src/lib/crypto/md4/md4.c +++ b/src/lib/crypto/md4/md4.c @@ -8,11 +8,15 @@ * md4.c from RFC1186 * * $Log$ - * Revision 5.1 1990/11/08 11:32:24 jtkohl + * Revision 5.2 1991/01/17 11:39:34 jtkohl + * fix problem with referencing past end of array on byte-aligned + * input + * + * Revision 5.1 90/11/08 11:32:24 jtkohl * change to copy onto stack to avoid modifying input in MDupdate * add Kerberos byte-order detection * some compilers will require the "L" qualifier on long constants. - * + * * Revision 5.0 90/11/07 14:12:04 jtkohl * Initial code from RFC * @@ -270,7 +274,7 @@ unsigned int count; p = MDp->count; while (tmp) { tmp += *p; - *p++ = tmp; + *p++ = (unsigned char) tmp; tmp = tmp >> 8; } /* Process data */ @@ -288,7 +292,11 @@ unsigned int count; byte = count >> 3; bit = count & 7; /* Copy X into XX since we need to modify it */ - for (i=0;i<=byte;i++) XX[i] = X[i]; + for (i=0;i<byte;i++) XX[i] = X[i]; + if (bit) + XX[byte] = X[byte]; + else + XX[byte] = 0; for (i=byte+1;i<64;i++) XX[i] = 0; /* Add padding '1' bit and low-order zeros in last byte */ mask = 1 << (7 - bit); |