CVE-2017-9465

The yr_arena_write_data function in YARA 3.6.1 allows remote attackers to cause a denial of...

7.1 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: High

Exploit likelihood

1.18%Up 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 7.1

Record: CVE-2017-9465
CVSS 3.0: 7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS 2.0: 5.8 MediumAV:N/AC:M/Au:N/C:P/I:N/A:P
Weakness: CWE-125
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-9465
Updated: 2026-11-02

EUVDEUVD-2017-18397 No score

Record: EUVD-2017-18397
Updated: 2026-11-03

GitHub AdvisoriesGHSA-35mv-vrc8-4x74 7.1

The yr_arena_write_data function in YARA 3.6.1 allows remote attackers to cause a denial of...

Record: GHSA-35mv-vrc8-4x74
CVSS 3.0: 7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 7.1

Record: CVE-2017-9465
CVSS 3.0: 7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2017-9465 7.1

Record: DEBIAN-CVE-2017-9465
CVSS 3.0: 7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2017-9465 7.1

Record: UBUNTU-CVE-2017-9465
CVSS 3.0: 7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated: 2026-11-02

Affected products

virustotal yara

Affected packages

Affected packages
Package	Affected	Fixed
`yara` Debian:12	before 3.6.2+dfsg-1	3.6.2+dfsg-1
`yara` Debian:13	before 3.6.2+dfsg-1	3.6.2+dfsg-1
`yara` Debian:14	before 3.6.2+dfsg-1	3.6.2+dfsg-1
`yara` Ubuntu:Pro:16.04:LTS	before 3.4.0+dfsg-2ubuntu0.1~esm1, plus listed versions 3.4.0+dfsg-23.4.0+dfsg-2build1	3.4.0+dfsg-2ubuntu0.1~esm1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-9465 is a high vulnerability (CVSS 7.1) in Virustotal Yara, published June 6, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.18%, the 67th percentile. Fixed in yara 3.6.2+dfsg-1.