CVE-2016-4300: libarchive Integer Overflow or Wraparound

Vulnerability summary

CVE-2016-4300 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in libarchive. EPSS estimates a 4.92% chance of exploitation in the next 30 days, higher than 92% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 21-09-2016
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.