Use After Free in Libarchive
CVE-2019-18408
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Libarchive
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- bugs.chromium.org/p/oss-fuzz/issues/detail (Third Party Advisory)
- github.com/libarchive/libarchive/commit/b8592ecba2f9e451e1f5cb7ab6dcee8b8e7b3f60 (Patch, Third Party Advisory)
- github.com/libarchive/libarchive/compare/v3.3.3...v3.4.0 (Third Party Advisory, Release Notes)
- lists.debian.org/debian-lts-announce/2019/10/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4169-1/ (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2019/dsa-4557 (vendor-advisory)
- seclists.org/bugtraq/2019/Nov/2 (mailing-list)
- support.f5.com/csp/article/K52144175
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html (vendor-advisory)
Frequently asked questions
- What is CVE-2019-18408?
- CVE-2019-18408 is a high-severity vulnerability in Libarchive, classified under Use After Free. CVSS score: 7.5/10. Published 2019-10-24.
- How severe is CVE-2019-18408?
- High severity. CVSS v3 base score is 7.5 out of 10.