CVE-2016-4300

Publication date 23 June 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
libarchive 16.04 LTS xenial
Fixed 3.1.2-11ubuntu0.16.04.2
15.10 wily
Fixed 3.1.2-11ubuntu0.15.10.2
14.04 LTS trusty
Fixed 3.1.2-7ubuntu2.3
12.04 LTS precise
Fixed 3.0.3-6ubuntu1.3

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libarchive

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3033-1
    • libarchive vulnerabilities
    • 14 July 2016

Other references

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