CVE-2017-9465 — HIGH (7.1) — White Hats Nepal

Vulnerability Description

The yr_arena_write_data function in YARA 3.6.1 allows remote attackers to cause a denial of service (buffer over-read and application crash) or obtain sensitive information from process memory via a crafted file that is mishandled in the yr_re_fast_exec function in libyara/re.c and the _yr_scan_match_callback function in libyara/scan.c.

CVSS Score

7.1

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Virustotal	Yara	3.6.1

Related Weaknesses (CWE)

CWE-125

References

https://github.com/VirusTotal/yara/commit/992480c30f75943e9cd6245bb2015c7737f9b6PatchThird Party Advisory
https://github.com/VirusTotal/yara/issues/678ExploitThird Party Advisory
https://github.com/VirusTotal/yara/commit/992480c30f75943e9cd6245bb2015c7737f9b6PatchThird Party Advisory
https://github.com/VirusTotal/yara/issues/678ExploitThird Party Advisory

FAQ

What is CVE-2017-9465?

CVE-2017-9465 is a vulnerability with a CVSS score of 7.1 (HIGH). The yr_arena_write_data function in YARA 3.6.1 allows remote attackers to cause a denial of service (buffer over-read and application crash) or obtain sensitive information from process memory via a c...

How severe is CVE-2017-9465?

CVE-2017-9465 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-9465?

Check the references section above for vendor advisories and patch information. Affected products include: Virustotal Yara.