full-disclosure - openssh remote exploit

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Message-ID: <200309152331.h8FNVuJ3030952@mailserver2.hushmail.com>
From: auto64746 at hushmail.com (auto64746@...hmail.com)
Subject: openssh remote exploit

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you can see the 2 bugs in this code?, seems to of me that theo could
not. i am of understanding that there are exploits working on this in
the wild. 3 remote holes in default install now !
hahaha

void *
buffer_append_space(Buffer *buffer, u_int len)
{
        void *p;

        if (len > 0x100000)
                fatal("buffer_append_space: len %u not supported", len);

        /* If the buffer is empty, start using it from the beginning.
*/
        if (buffer->offset == buffer->end) {
                buffer->offset = 0;
                buffer->end = 0;
        }
restart:
        /* If there is enough space to store all data, store it now.
*/
        if (buffer->end + len < buffer->alloc) {
                p = buffer->buf + buffer->end;
                buffer->end += len;
                return p;
        }
        /*
         * If the buffer is quite empty, but all data is at the end,
move the
         * data to the beginning and retry.
         */
        if (buffer->offset > buffer->alloc / 2) {
                memmove(buffer->buf, buffer->buf + buffer->offset,
                        buffer->end - buffer->offset);
                buffer->end -= buffer->offset;
                buffer->offset = 0;
                goto restart;
        }
        /* Increase the size of the buffer and retry. */
        buffer->alloc += len + 32768;
        if (buffer->alloc > 0xa00000)
                fatal("buffer_append_space: alloc %u not supported",
                    buffer->alloc);
        buffer->buf = xrealloc(buffer->buf, buffer->alloc);
        goto restart;
        /* NOTREACHED */
}
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