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author | Josh Roberson <josh@asteriasgi.com> | 2017-03-27 11:49:08 -0500 |
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committer | Sean Bright <sean.bright@gmail.com> | 2017-03-27 15:51:44 -0400 |
commit | bb68f57a03c0639663aa20d95fcdc16a4c1ff094 (patch) | |
tree | be012b8ca632b95c66d568a13c69b9a88f39f9a5 /contrib/realtime/oracle | |
parent | 552cf009c0939c8b6597708135412bdc596df4bb (diff) |
cel_pgsql.c: Fix buffer overflow calling libpq
PQEscapeStringConn() expects the buffer passed in to be an
adequitely sized buffer to write out the escaped SQL value string
into. It is possible, for large values (such as large values to
Dial with a lot of devices) to have more than our 512+1 byte
allocation and thus cause libpq to create a buffer overrun.
glibc will nicely ABRT asterisk for you, citing a stack smash.
Let's only allocate it to be as large as needed:
If we have a value, then (strlen(value) * 2) + 1 (as recommended
by libpq), and if we have none, just one byte to hold our null
will do.
ASTERISK-26896 #close
Change-Id: If611c734292618ed68dde17816d09dd16667dea2
Diffstat (limited to 'contrib/realtime/oracle')
0 files changed, 0 insertions, 0 deletions