Integer overflow in Etalabs Musl

CVE-2016-8859

Multiple integer overflows in the TRE library and musl libc allow attackers to cause memory corruption via a large number of (1) states or (2) tags, which triggers an out-of-bounds write.

Vulnerability class: Integer Overflow

EPSS: 0.034 (87.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, x_refsource_SUSE)
  • cve@mitre.org (vendor-advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2016-8859?
CVE-2016-8859 is a critical-severity vulnerability in Etalabs Musl, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-02-13.
How severe is CVE-2016-8859?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-8859 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.