CVE-2020-9308
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Libarchive
PublishedFeb 20, 2020
First seenFeb 20, 2020
How to fix
Update
- libarchive libarchive3.4.2 or later
Vendor advisories
- security.gentoo.org/glsa/202003-28
- usn.ubuntu.com/4293-1/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OTE7GWASH2ZOVG5H3HEN5PR6B3KF7JB/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J76F7VU7HC3GBKG5SAKTRBOFOI3RGO6M/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libarchive libarchive | 3.4.0 ≤ v < 3.4.2 | 3.4.2 |
| canonical ubuntu_linux | 16.04, 18.04, 19.10 | — |
| fedoraproject fedora | 31, 32 | — |
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