Buffer overflow in Libarchive
CVE-2020-9308
archive_read_support_format_rar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header (such as a header size of zero), leading to a SIGSEGV or possibly unspecified other impact.
Vulnerability class: Buffer Overflow
EPSS: 0.023 (81.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Libarchive
- Canonical Ubuntu_linux — versions 16.04, 18.04, 19.10
- Fedoraproject Fedora — versions 31, 32
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2020-9308?
- CVE-2020-9308 is a high-severity vulnerability in Libarchive, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-02-20.
- How severe is CVE-2020-9308?
- High severity. CVSS v3 base score is 8.8 out of 10.