CVE-2017-13704: DNSMasq: Integer underflow flaw leading to buffer over-read
5
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
10/02/2017
07/25/2018
10/02/2017
12/04/2017
Description
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
Solution(s)
- dnsmasq-upgrade-latest
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