Fix Integer overflow in show_supplies() - #1715 - #1716
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In the future, please combine bug report and PR into a single PR with the full explanation of the bug. Doing both just gives both of us extra work. |
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Problem: show_supplies() reads the supply level from the "supply%d" field of an unauthenticated GET request with atoi() and never range checks it. The value is stored in printer-supply, read back with atoi() and used as "level * 2", which overflows for both large negative and large positive levels. Solution: Clamped level to the 0..100 range declared by maxcapacity in printer-supply, both after reading the form field and after parsing it back out of printer-supply. Signed-off-by: p.nekrasov@fobos-nt.ru Signed-off-by: Timofei Fedotov sovtouch@altlinux.org
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fixed #1715
Solution:
Clamped level to the 0..100 range declared by maxcapacity in printer-supply, both after reading the form field and after parsing it back out of printer-supply.
Signed-off-by: p.nekrasov@fobos-nt.ru
Signed-off-by: Timofei Fedotov sovtouch@altlinux.org