CVE-2017-13704
7.5
HIGH
CVSS 3.1
EPSS 77.8%
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.
How to fix CVE-2017-13704
To remediate CVE-2017-13704, upgrade the affected package to a fixed version below.
- Alpine/dnsmasq—upgrade to 2.78-r0 or later
- —upgrade to 2.78-1 or later
Is CVE-2017-13704 being exploited?
Likely — EPSS is 77.8%, placing CVE-2017-13704 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 2.78-r0
- from 0, < 2.78-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |