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MitreCVE-2017-8294

HistoryApr 27, 2017 - 2:59 p.m.

CVE-2017-8294

2017-04-2714:59:00

CWE-125

mitre

web.nvd.nist.gov

yara

3.5.0

cve-2017-8294

denial of service

remote attackers

out-of-bounds read

application crash

regex component

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

Confidence

High

EPSS

0.005

Percentile

75.8%

JSON

libyara/re.c in the regex component in YARA 3.5.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted rule that is mishandled in the yr_re_exec function.

Affected configurations

Nvd

Node

virustotalyaraMatch3.5.0

VendorProductVersionCPE
virustotalyara3.5.0cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
virustotal	yara	3.5.0	cpe:2.3:a:virustotal:yara:3.5.0:::::::*

References

www.securityfocus.com/bid/98072

github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e

github.com/VirusTotal/yara/issues/646

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

Confidence

High

EPSS

0.005

Percentile

75.8%

JSON

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