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    CVE-2016-4300

    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.

    Published:Jun 19, 2016
    Last Modified:Apr 12, 2025
    EPS:Sep 21, 2016
    EPSS Score:0.0177
    CVSS Score:7.8

    Affected Products

    Vendor
    Libarchive
    Product
    Libarchive
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Hpc Node
    Vendor
    Redhat
    Product
    Enterprise Linux Hpc Node Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation

    Exploits

    http://blog.talosintel.com/2016/06/the-poisoned-archives.htmlhttp://www.talosintel.com/reports/TALOS-2016-0152/http://blog.talosintel.com/2016/06/the-poisoned-archives.htmlhttp://www.talosintel.com/reports/TALOS-2016-0152/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-16517 (CVSS 2.9) — A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header …
    CVE-2026-14164 (CVSS 7.5) — A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR…
    CVE-2026-5745 (CVSS 5.5) — A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, spec…
    CVE-2026-5121 (CVSS 7.5) — A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs bloc…
    CVE-2026-4424 (CVSS 7.5) — A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processin…
    CVE-2026-4426 (CVSS 6.5) — A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, …
    CVE-2025-60753 (CVSS 5.5) — An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/s…
    CVE-2025-5916 (CVSS 3.9) — A vulnerability has been identified in the libarchive library. This flaw involves an integer overflow that can…
    CVE-2025-5918 (CVSS 3.9) — A vulnerability has been identified in the libarchive library. This flaw can be triggered when file streams ar…
    CVE-2025-5917 (CVSS 2.8) — A vulnerability has been identified in the libarchive library. This flaw involves an 'off-by-one' miscalculati…

    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High