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TI-2018-16096 Aliases CVE-2018-1000877GHSA-rfww-wwgq-55v3

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release…

Priority MEDIUM 45CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

Why it matters now

EPSS 0.04575 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*3.1.0 to before 3.4.0Vulnerablelibarchive
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*28VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*29VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
  • cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:* Versions 3.1.0 to before 3.4.0 Vulnerable ·libarchive
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* Versions 28 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2019:3698 Released 2019-11-05 · Red Hat rating Moderate
    libarchive security and bug fix update
    • Red Hat CodeReady Linux Builder (v. 8) libarchive-devel-3.3.2-7.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bsdtar-3.3.2-7.el8, libarchive-3.3.2-7.el8
  • RHSA-2019:2298 Released 2019-08-06 · Red Hat rating Moderate
    libarchive security update
    • Red Hat Enterprise Linux Client (v. 7) libarchive-3.1.2-12.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) bsdcpio-3.1.2-12.el7, bsdtar-3.1.2-12.el7, libarchive-devel-3.1.2-12.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) libarchive-3.1.2-12.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) bsdcpio-3.1.2-12.el7, bsdtar-3.1.2-12.el7, libarchive-devel-3.1.2-12.el7
    • Red Hat Enterprise Linux Server (v. 7) libarchive-3.1.2-12.el7, libarchive-3.1.2-12.el7.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) bsdcpio-3.1.2-12.el7, bsdtar-3.1.2-12.el7, libarchive-devel-3.1.2-12.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) libarchive-3.1.2-12.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) bsdcpio-3.1.2-12.el7, bsdtar-3.1.2-12.el7, libarchive-devel-3.1.2-12.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2019:3698
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2019:3698
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2298
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:2298
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000877
  2. 2026-10-03 Alias added: GHSA-rfww-wwgq-55v3

References

Patch 1

Advisory 13

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences