vulnwire
7.5high

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…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 81%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.03% probability of exploitation in the next 30 days, higher than 81% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • git.musl-libc.org /cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395 · x_refsource_CONFIRM, x_transferred
  • git.musl-libc.org /cgit/musl/tree/WHATSNEW · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2017/10/19/5 · x_refsource_CONFIRM, x_transferred

Sources

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