archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive…
Priority MEDIUM 40CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol.
Why it matters now
EPSS 0.0404 90th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:* | before 3.4.0 | Vulnerable | libarchive |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* | 19.04 | Vulnerable | Canonical |
- cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:* Versions before 3.4.0 Vulnerable ·libarchive
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 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:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
Remediation
Red Hat 3 advisories
- RHSA-2020:0271 Released 2020-01-29 · Red Hat rating Importantlibarchive security update
- Red Hat CodeReady Linux Builder (v. 8) libarchive-devel-3.3.2-8.el8_1
- Red Hat Enterprise Linux BaseOS (v. 8) bsdtar-3.3.2-8.el8_1, libarchive-3.3.2-8.el8_1
- RHSA-2020:0246 Released 2020-01-27 · Red Hat rating Importantlibarchive security update
- Red Hat Enterprise Linux BaseOS E4S (v. 8.0) bsdtar-3.3.2-4.el8_0, libarchive-3.3.2-4.el8_0
- RHSA-2020:0203 Released 2020-01-22 · Red Hat rating Importantlibarchive security update
- Red Hat Enterprise Linux Client (v. 7) libarchive-3.1.2-14.el7_7
- Red Hat Enterprise Linux Client Optional (v. 7) bsdcpio-3.1.2-14.el7_7, bsdtar-3.1.2-14.el7_7, libarchive-devel-3.1.2-14.el7_7
- Red Hat Enterprise Linux ComputeNode (v. 7) libarchive-3.1.2-14.el7_7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) bsdcpio-3.1.2-14.el7_7, bsdtar-3.1.2-14.el7_7, libarchive-devel-3.1.2-14.el7_7
- Red Hat Enterprise Linux Server (v. 7) libarchive-3.1.2-14.el7_7, libarchive-3.1.2-14.el7_7.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) bsdcpio-3.1.2-14.el7_7, bsdtar-3.1.2-14.el7_7, libarchive-devel-3.1.2-14.el7_7 +1
- Red Hat Enterprise Linux Workstation (v. 7) libarchive-3.1.2-14.el7_7
- Red Hat Enterprise Linux Workstation Optional (v. 7) bsdcpio-3.1.2-14.el7_7, bsdtar-3.1.2-14.el7_7, libarchive-devel-3.1.2-14.el7_7
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:0271 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:0271 |
| Red Hat Enterprise Linux BaseOS E4S (v. 8.0) | Fixed | RHSA-2020:0246 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:0203 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:0203 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2019-18408
- 2026-10-03 Alias added: GHSA-4hj2-55w3-4qwh
References
Advisory 12
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14689
- https://github.com/libarchive/libarchive/compare/v3.3.3...v3.4.0
- [debian-lts-announce] 20191026 [SECURITY] [DLA 1971-1] libarchive security update
- USN-4169-1
- DSA-4557
- openSUSE-SU-2019:2615
- openSUSE-SU-2019:2632
- RHSA-2020:0246
- RHSA-2020:0271
- RHSA-2020:0203
- GLSA-202003-28
- FEDORA-2019-71b2273a9f
Sources
- CVE-2019-18408 · CVE Program
- CVE-2019-18408 · NVD
- FIRST EPSS
- GHSA-4hj2-55w3-4qwh · GitHub Advisory Database · CC BY 4.0
- CVE-2019-18408 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences