CVE-2020-9308

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.61%
Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libarchive/libarchive/pull/1326 third party advisory patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20459 patch third party advisory issue tracking
https://github.com/libarchive/libarchive/pull/1326/commits/94821008d6eea81e315c5881cdf739202961040a third party advisory patch
https://security.gentoo.org/glsa/202003-28 third party advisory vendor advisory
https://usn.ubuntu.com/4293-1/ third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OTE7GWASH2ZOVG5H3HEN5PR6B3KF7JB/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J76F7VU7HC3GBKG5SAKTRBOFOI3RGO6M/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-9308?
CVE-2020-9308 has been scored as a high severity vulnerability.
How to fix CVE-2020-9308?
To fix CVE-2020-9308, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-9308 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-9308 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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