High severity · published Jul 1, 2021
CVE-2017-20006
UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile)
7.8
CVSS
1.2%
EPSS
No
On KEV
Description
UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and CmdExtract::ExtractCurrentFile).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UN
Unrar · Rarlab
5.6.1.2; 5.6.1.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-20006
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-20006
Exploit
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4373
Patch
https://github.com/aawc/unrar/commit/0ff832d31470471803b175cfff4e40c1b08ee779
Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/unrar/OSV-2017-104.yaml
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