What’s Vulnerable › Vulnerabilities

CVE-2016-4300

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-09-21 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• libarchive: through 3.2.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Hpc Node: 7.0
• RedHat Enterprise Linux Hpc Node Eus: 7.2
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.2
• RedHat Enterprise Linux Server Eus: 7.2
• RedHat Enterprise Linux Workstation: 7.0

References

• http://blog.talosintel.com/2016/06/the-poisoned-archives.html
• http://rhn.redhat.com/errata/RHSA-2016-1844.html
• http://www.debian.org/security/2016/dsa-3657
• http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.securityfocus.com/bid/91326
• http://www.talosintel.com/reports/TALOS-2016-0152/
• https://bugzilla.redhat.com/show_bug.cgi?id=1348439
• https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573
• https://github.com/libarchive/libarchive/issues/718
• https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00062&languageid=en-fr
• https://security.gentoo.org/glsa/201701-03

Get alerted when CVE-2016-4300 or the next vulnerability affects your stack