curl · Report #661847
Integer overflows in tool_operate.c at line 1541
Informativestatus
lowseverity
4upvotes
1 Jan 2021disclosed
How it was found
Summary:
[add summary of the vulnerability] In tool_operate.c at line 1541, if --retry-delay>18446744073709552, config->retry_delay*1000 > 2^64 results in integer overflows, on 64 bit architectures;
Steps To Reproduce:
[add details for how we can reproduce the issue]
- [add step] Tool_operate.c add a "printf" at line 1538 as following: printf("config->retry_delay1000L = %ld\n", config->retry_delay1000L);
- [add step] make
- [add step]
run command:
./src/curl --retry-delay 18446744073709552 -v 192.168.222.1:8080/test.html output: config->retry_delay*1000L = 384
Supporting Material/References:
[list any additional material (e.g. screenshots, logs, etc.)]
- [attachment / reference]
Impact
The flaw exists on 32&64 bit architectures, it results in retry-delay is invalid.