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| author | Jason A. Donenfeld | 2015-11-24 11:28:00 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld | 2015-11-24 11:31:43 +0100 |
| commit | 4458abf64172a62b92810c2293450106e6dfc763 (patch) | |
| tree | 92a3f3587e85c11c77d11769a45d55ddb2fd81a6 /ui-log.c | |
| parent | ffe09621f2626c692a16b249a52112ba8070aa79 (diff) | |
| download | cgit-4458abf64172a62b92810c2293450106e6dfc763.tar cgit-4458abf64172a62b92810c2293450106e6dfc763.tar.gz cgit-4458abf64172a62b92810c2293450106e6dfc763.zip | |
filter: avoid integer overflow in authenticate_post
ctx.env.content_length is an unsigned int, coming from the
CONTENT_LENGTH environment variable, which is parsed by strtoul. The
HTTP/1.1 spec says that "any Content-Length greater than or equal to
zero is a valid value." By storing this into an int, we potentially
overflow it, resulting in the following bounding check failing, leading
to a buffer overflow.
Reported-by: Erik Cabetas <Erik@cabetas.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'ui-log.c')
0 files changed, 0 insertions, 0 deletions