CVE-2017-15650

Description

musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because dns_parse_callback in network/lookup_name.c does not restrict the number of addresses, and thus an attacker can provide an unexpected number by sending A records in a reply to an AAAA query.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.63%
Vendor Advisory musl-libc.org Vendor Advisory musl-libc.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395 vendor advisory
http://git.musl-libc.org/cgit/musl/tree/WHATSNEW vendor advisory
http://openwall.com/lists/oss-security/2017/10/19/5 mailing list mitigation third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-15650?
CVE-2017-15650 has been scored as a high severity vulnerability.
How to fix CVE-2017-15650?
To fix CVE-2017-15650, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-15650 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-15650 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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