Out-of-Bounds Affecting musl package, versions <1.1.9-1ubuntu0.1~esm2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.03% (81st percentile)

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  • Snyk IDSNYK-UBUNTU1604-MUSL-291888
  • published19 Oct 2017
  • disclosed19 Oct 2017

Introduced: 19 Oct 2017

CVE-2017-15650  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 musl to version 1.1.9-1ubuntu0.1~esm2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream musl package and not the musl package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

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.