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High severity · published Oct 19, 2017
CVE-2017-15650
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…
7.5
CVSS
2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
Musl · Musl-libc
through 1.1.6 · source: NVD
Affected product
MU
Musl
Musl-libc
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-15650
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-15650
Vendor Advisory
http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395
Vendor Advisory
http://git.musl-libc.org/cgit/musl/tree/WHATSNEW
Mailing List
http://openwall.com/lists/oss-security/2017/10/19/5
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