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Eos 5D Mark Iii Firmware CVE-2019-5998

HIGH
Out-of-bounds Write (CWE-787)
2019-08-06 vultures@jpcert.or.jp
RCE Buffer Overflow Memory Corruption Eos 1D X Firmware Eos 1D X Mkii Firmware Eos 1D C Firmware Eos 5D Mark Iii Firmware Eos 5D Mark Iv Firmware Eos 5Ds Firmware Eos 5Ds R Firmware Eos 6D Firmware Eos 7D Mark Ii Firmware Eos 70D Firmware Eos 80D Firmware Eos Kiss X7I Firmware Eos D Rebel T5I Firmware Eos 700D Firmware Eos Kiss X8I Firmware Eos D Rebel T6I Firmware Eos 750D Firmware Eos Kiss X9I Firmware Eos D Rebel T7I Firmware Eos 800D Firmware Eos Kiss X7 Firmware Eos D Rebel Sl1 Firmware Eos 100D Firmware Eos Kiss X9 Firmware Eos D Rebel Sl2 Firmware Eos 200D Firmware Eos Kiss X10 Firmware Eos D Rebel Sl3 Firmware Eos 250D Firmware Eos 8000D Firmware Eos D Rebel T6S Firmware Eos 760D Firmware Eos 9000D Firmware Eos 77D Firmware Eos Kiss X70 Firmware Eos D Rebel T5 Firmware Eos 1200D Firmware Eos D Rebel T5 Re Firmware Eos 1200D Mg Firmware Eos Hi Firmware Eos Kiss X80 Firmware Eos D Rebel T6 Firmware Eos 1300D Firmware Eos Kiss X90 Firmware Eos D Rebel T7 Firmware Eos 1500D Firmware Eos 2000D Firmware Eos D Rebel T100 Firmware Eos 3000D Firmware Eos 4000D Firmware Eos R Firmware Eos Rp Firmware Eos Rp Gold Firmware Eos M2 Firmware Eos M3 Firmware Eos M5 Firmware Eos M6 Firmware Eos M6 China Firmware Eos M10 Firmware Eos M100 Firmware Eos Kiss M Firmware Eos M50 Firmware Powershot Sx740 Hs Firmware Powershot Sx70 Hs Firmware Powershot G5Xmark Ii Firmware Eos 6D Mark Ii Firmware Canon
8.8
CVSS 3.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-787
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 8.8 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to write data beyond allocated buffer boundaries leading to code execution or crashes. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 2.6% exploitation probability (EPSS)

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AnalysisAI

Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware version 1.4.1 and earlier, EOS 5D MARK III firmware version 1.3.5 and earlier, EOS 5D MARK IV firmware version 1.2.0 and earlier, EOS 5DS firmware version 1.1.2 and earlier, EOS 5DS R firmware version 1.1.2 and earlier, EOS 6D firmware version 1.1.8 and earlier, EOS 6D MARK II firmware version 1.0.4 and earlier, EOS 7D MARK II firmware version 1.1.2 and earlier, EOS 70 D firmware version 1.1.2 and earlier, EOS 80 D firmware version 1.0.2 and earlier, EOS KISS X7I / EOS D REBEL T5I / EOS 700D firmware version 1.1.5 and earlier, EOS KISS X8I / EOS D REBEL T6I / EOS 750D firmware version 1.0.0 and earlier, EOS KISS X9I / EOS D REBEL T7I / EOS 800D firmware version 1.0.1 and earlier, EOS KISS X7 / EOS D REBEL SL1 / EOS 100D firmware version 1.0.1 and earlier, EOS KISS X9 / EOS D REBEL SL2 / EOS 200D firmware version 1.0.1 and earlier, EOS KISS X10 / EOS D REBEL SL3 / EOS 200D / EOS 250D firmware version 1.0.1 and earlier, EOS 8000D / EOS D REBEL T6S / EOS 760D firmware version 1.0.0 and earlier, EOS 9000D / EOS 77D firmware version 1.0.2 and earlier, EOS KISS X70 / EOS D REBEL T5 / EOS 1200D firmware version 1.0.2 and earlier, EOS D REBEL T5 RE / EOS 1200D MG / EOS HI firmware version 1.0.2 and earlier, EOS KISS X80 / EOS D REBEL T6 / EOS 1300D firmware version 1.1.0 and earlier, EOS KISS X90 / EOS D REBEL T7 / EOS 1500D / EOS 2000D firmware version 1.0.0 and earlier, EOS D REBEL T100 / EOS 3000D / EOS 4000D firmware version 1.0.0 and earlier, EOS R firmware version 1.3.0 and earlier, EOS RP firmware version 1.2.0 and earlier, EOS RP GOLD firmware version 1.2.0 and earlier, EOS M2 firmware version 1.0.3 and earlier, EOS M3 firmware version 1.2.0 and earlier, EOS M5 firmware version 1.0.1 and earlier, EOS M6 firmware version 1.0.1 and earlier, EOS M6(China) firmware version 5.0.0 and earlier, EOS M10 firmware version 1.1.0 and earlier, EOS M100 firmware version 1.0.0 and earlier, EOS KISS M / EOS M50 firmware version 1.0.2 and earlier) and PowerShot SX740 HS firmware version 1.0.1 and earlier, PowerShot SX70 HS firmware version 1.1.0 and earlier, and PowerShot G5Xmark II firmware version 1.0.1 and earlier allows an attacker on the same network segment to trigger the affected product being unresponsive or to execute arbitrary code on the affected product via notifybtstatus command. Affected products include: Canon Eos-1D X Firmware, Canon Eos-1D X Mkii Firmware, Canon Eos-1D C Firmware, Canon Eos 5D Mark Iii Firmware, Canon Eos 5D Mark Iv Firmware. Version information: version 2.1.0.

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Severity by source

NVD PRIMARY 8.8 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware version 1.4.1 and earlier, EOS 5D MARK III firmware version 1.3.5 and earlier, EOS 5D MARK IV firmware version 1.2.0 and earlier, EOS 5DS firmware version 1.1.2 and earlier, EOS 5DS R firmware version 1.1.2 and earlier, EOS 6D firmware version 1.1.8 and earlier, EOS 6D MARK II firmware version 1.0.4 and earlier, EOS 7D MARK II firmware version 1.1.2 and earlier, EOS 70 D firmware version 1.1.2 and earlier, EOS 80 D firmware version 1.0.2 and earlier, EOS KISS X7I / EOS D REBEL T5I / EOS 700D firmware version 1.1.5 and earlier, EOS KISS X8I / EOS D REBEL T6I / EOS 750D firmware version 1.0.0 and earlier, EOS KISS X9I / EOS D REBEL T7I / EOS 800D firmware version 1.0.1 and earlier, EOS KISS X7 / EOS D REBEL SL1 / EOS 100D firmware version 1.0.1 and earlier, EOS KISS X9 / EOS D REBEL SL2 / EOS 200D firmware version 1.0.1 and earlier, EOS KISS X10 / EOS D REBEL SL3 / EOS 200D / EOS 250D firmware version 1.0.1 and earlier, EOS 8000D / EOS D REBEL T6S / EOS 760D firmware version 1.0.0 and earlier, EOS 9000D / EOS 77D firmware version 1.0.2 and earlier, EOS KISS X70 / EOS D REBEL T5 / EOS 1200D firmware version 1.0.2 and earlier, EOS D REBEL T5 RE / EOS 1200D MG / EOS HI firmware version 1.0.2 and earlier, EOS KISS X80 / EOS D REBEL T6 / EOS 1300D firmware version 1.1.0 and earlier, EOS KISS X90 / EOS D REBEL T7 / EOS 1500D / EOS 2000D firmware version 1.0.0 and earlier, EOS D REBEL T100 / EOS 3000D / EOS 4000D firmware version 1.0.0 and earlier, EOS R firmware version 1.3.0 and earlier, EOS RP firmware version 1.2.0 and earlier, EOS RP GOLD firmware version 1.2.0 and earlier, EOS M2 firmware version 1.0.3 and earlier, EOS M3 firmware version 1.2.0 and earlier, EOS M5 firmware version 1.0.1 and earlier, EOS M6 firmware version 1.0.1 and earlier, EOS M6(China) firmware version 5.0.0 and earlier, EOS M10 firmware version 1.1.0 and earlier, EOS M100 firmware version 1.0.0 and earlier, EOS KISS M / EOS M50 firmware version 1.0.2 and earlier) and PowerShot SX740 HS firmware version 1.0.1 and earlier, PowerShot SX70 HS firmware version 1.1.0 and earlier, and PowerShot G5Xmark II firmware version 1.0.1 and earlier allows an attacker on the same network segment to trigger the affected product being unresponsive or to execute arbitrary code on the affected product via notifybtstatus command.

Threat Intelligence Overview

EPSS Score
2.6%
Top 17% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 2.6%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

67
Low Medium High Critical
KEV: 0
EPSS: +3
CVSS: +44
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Memory Corruption HIGH

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:canon:eos-1d_x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos-1d_x_mkii_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos-1d_c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_5d_mark_iii_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_5d_mark_iv_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_5ds_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_5ds_r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_6d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_7d_mark_ii_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_70d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_80d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_kiss_x7i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_d_rebel_t5i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_700d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_kiss_x8i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_d_rebel_t6i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_750d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_kiss_x9i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_d_rebel_t7i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canon:eos_800d_firmware:*:*:*:*:*:*:*:*
+ 47 more

More in Eos 5D Mark Iii Firmware

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Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and ea
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Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and ea
CVE-2019-6001 MEDIUM POC
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Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and ea
CVE-2019-5995 MEDIUM POC
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Missing authorization vulnerability exists in EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, E

Same weakness CWE-787 – Out-of-bounds Write

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References

Advisories & patches
ADVISORY https://cweb.canon.jp/e-support/products/eos-d/190806dilc-firm.html ADVISORY https://www.canon-europe.com/support/product-security/ ADVISORY https://www.usa.canon.com/internet/portal/us/home/support/product-advisories/detail/the-vulnerability-in-canon-digital-cameras REF http://jvn.jp/en/vu/JVNVU97511331/index.html

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