High severity · published Feb 20, 2020
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…
8.8
CVSS
2.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
31; 32 · source: NVD
LI
Libarchive · Libarchive
3.4.0 before 3.4.2 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 19.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9308
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9308
Issue Tracking
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20459
Patch
https://github.com/libarchive/libarchive/pull/1326
Patch
https://github.com/libarchive/libarchive/pull/1326/commits/94821008d6eea81e315c5881cdf739202961040a
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OTE7GWASH2ZOVG5H3HEN5PR6B3KF7JB/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J76F7VU7HC3GBKG5SAKTRBOFOI3RGO6M/
Third Party Advisory
https://security.gentoo.org/glsa/202003-28
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