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ID

VAR-202002-0375


CVE

CVE-2019-9502


TITLE

Broadcom WiFi chipset drivers contain multiple vulnerabilities

Trust: 0.8

sources: CERT/CC: VU#166939

DESCRIPTION

The Broadcom wl WiFi driver is vulnerable to a heap buffer overflow. If the vendor information element data length is larger than 164 bytes, a heap buffer overflow is triggered in wlc_wpa_plumb_gtk. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions. Broadcom Made Wi-Fi For chipset Broadcom wl Drivers and open source brcmfmac There are multiple vulnerabilities in the driver. Broadcom wl Driver vulnerabilities : Client is an access point (AP) To do with 4-way During handshake EAPOL message 3 In the analysis process of 2 There are two heap buffer overflows. FullMAC When used in a chipset, these buffer overflows occur in the chipset firmware. Open source brcmfmac Vulnerability present in the driver : brcmfmac Driver is Broadcom FullMAC This driver works only with the chipset. Vulnerability to avoid frame verification - CVE-2019-9503 brcmfmac If the driver receives a firmware event frame from a remote source, is_wlc_event_frame This function is designed to discard this frame and call the appropriate handler when a firmware event frame is received from the host. However, the bus connecting the chipset USB in the case of ( For example Wi-Fi Dongle etc. ) , The frame verification process according to the above source may be bypassed and firmware event frames from remote sources may be processed. Heap buffer overflow - CVE-2019-9500 Wake-up on Wireless LAN If the feature is enabled, by processing a specially crafted event frame, brcmf_wowl_nd_results A heap buffer overflow may occur in the function. Also, the vulnerability of frame verification avoidance (CVE-2019-9503) By combining with, it can be exploited for remote attacks.Crafted Wi-Fi Denial of service by processing frames (DoS) It can cause a condition. In some situations, arbitrary code may be executed. Attackers may exploit these issues to execute arbitrary code within the context of the affected application. This vulnerability stems from the incorrect verification of data boundaries when the network system or product performs operations on the memory, resulting in incorrect read and write operations to other associated memory locations

Trust: 2.79

sources: NVD: CVE-2019-9502 // CERT/CC: VU#166939 // JVNDB: JVNDB-2019-002702 // BID: 108013 // VULHUB: VHN-160937 // VULMON: CVE-2019-9502

AFFECTED PRODUCTS

vendor:synologymodel:router managerscope:eqversion:1.2

Trust: 1.3

vendor:broadcommodel:bcm4339scope:eqversion: -

Trust: 1.0

vendor:applemodel: - scope: - version: -

Trust: 0.8

vendor:broadcommodel: - scope: - version: -

Trust: 0.8

vendor:synologymodel: - scope: - version: -

Trust: 0.8

vendor:brcmfmacmodel:driverscope: - version: -

Trust: 0.8

vendor:broadcommodel:w1 driverscope: - version: -

Trust: 0.8

vendor:broadcommodel:wifi driverscope:eqversion:0

Trust: 0.3

vendor:broadcommodel:bcm4352scope:eqversion:6.30.223.0

Trust: 0.3

vendor:broadcommodel:bcm43236scope:eqversion:6.37.14.105

Trust: 0.3

sources: CERT/CC: VU#166939 // BID: 108013 // JVNDB: JVNDB-2019-002702 // NVD: CVE-2019-9502

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-9502
value: HIGH

Trust: 1.0

cret@cert.org: CVE-2019-9502
value: HIGH

Trust: 1.0

CNNVD: CNNVD-201904-964
value: HIGH

Trust: 0.6

VULHUB: VHN-160937
value: HIGH

Trust: 0.1

VULMON: CVE-2019-9502
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2019-9502
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

VULHUB: VHN-160937
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2019-9502
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

cret@cert.org: CVE-2019-9502
baseSeverity: HIGH
baseScore: 7.9
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.2
impactScore: 6.0
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-160937 // VULMON: CVE-2019-9502 // CNNVD: CNNVD-201904-964 // NVD: CVE-2019-9502 // NVD: CVE-2019-9502

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.1

problemtype:CWE-122

Trust: 1.0

sources: VULHUB: VHN-160937 // NVD: CVE-2019-9502

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-201904-964

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-201904-964

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2019-002702

PATCH
title:Connecting Everything url:https://www.broadcom.com/
Trust: 0.8
title:Broadcom WiFi Chipset Drivers Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=91777
Trust: 0.6
title:The Registerurl:https://www.theregister.co.uk/2020/07/15/july_2020_patch_tuesday/
Trust: 0.2
title:Huawei Security Advisories: Security Advisory - Two Heap Buffer Overflow Vulnerabilities in Broadcom WiFi Chipset Driversurl:https://vulmon.com/vendoradvisory?qidtp=huawei_security_advisories&qid=a3f3540316426ad86e8026fbac500d9a
Trust: 0.1
title:Awesome CVE PoCurl:https://github.com/lnick2023/nicenice 
Trust: 0.1
title:Awesome CVE PoCurl:https://github.com/xbl3/awesome-cve-poc_qazbnm456 
Trust: 0.1
title:PoC in GitHuburl:https://github.com/0xT11/CVE-POC 
Trust: 0.1
title:PoC in GitHuburl:https://github.com/developer3000S/PoC-in-GitHub 
Trust: 0.1
title:Awesome CVE PoCurl:https://github.com/qazbnm456/awesome-cve-poc 
Trust: 0.1
title:PoC in GitHuburl:https://github.com/hectorgie/PoC-in-GitHub 
Trust: 0.1
sources:
            
            
            VULMON: CVE-2019-9502 // 
            
            
            
            JVNDB: JVNDB-2019-002702 // 
            
            
            
            CNNVD: CNNVD-201904-964

EXTERNAL IDS
db:CERT/CCid:VU#166939
Trust: 3.7
db:NVDid:CVE-2019-9502
Trust: 2.9
db:BIDid:108013
Trust: 1.0
db:JVNid:JVNVU90663693
Trust: 0.8
db:JVNDBid:JVNDB-2019-002702
Trust: 0.8
db:CNNVDid:CNNVD-201904-964
Trust: 0.7
db:AUSCERTid:ESB-2022.0610
Trust: 0.6
db:AUSCERTid:ESB-2020.2309
Trust: 0.6
db:AUSCERTid:ESB-2022.0614
Trust: 0.6
db:AUSCERTid:ESB-2022.0215
Trust: 0.6
db:VULHUBid:VHN-160937
Trust: 0.1
db:VULMONid:CVE-2019-9502
Trust: 0.1
sources:
            
            
            CERT/CC: VU#166939 // 
            
            
            
            VULHUB: VHN-160937 // 
            
            
            
            VULMON: CVE-2019-9502 // 
            
            
            
            BID: 108013 // 
            
            
            
            JVNDB: JVNDB-2019-002702 // 
            
            
            
            CNNVD: CNNVD-201904-964 // 
            
            
            
            NVD: CVE-2019-9502

REFERENCES
url:https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html
Trust: 3.7
url:https://kb.cert.org/vuls/id/166939/
Trust: 1.8
url:https://www.kb.cert.org/vuls/id/166939/
Trust: 1.7
url:http://www.linux.org/
Trust: 0.9
url:https://www.synology.com/en-global/security/advisory/synology_sa_19_18
Trust: 0.9
url:https://lore.kernel.org/linux-wireless/1550148232-4309-1-git-send-email-arend.vanspriel@broadcom.com
Trust: 0.8
url:https://broadcom.com/
Trust: 0.8
url:https://git.kernel.org/linus/a4176ec356c73a46c07c181c6d04039fafa34a9f
Trust: 0.8
url:https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deff
Trust: 0.8
url:https://www.synology.com/security/advisory/synology_sa_19_18
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-9500
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-9501
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-9502
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-9503
Trust: 0.8
url:https://jvn.jp/vu/jvnvu90663693/
Trust: 0.8
url:https://lore.kernel.org/linux-wireless/1550148232-4309-1-git-send-email-arend.vanspriel@broadcom.com/
Trust: 0.8
url:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4176ec356c73a46c07c181c6d04039fafa34a9f
Trust: 0.8
url:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1b5e2423164b3670e8bc9174e4762d297990deff
Trust: 0.8
url:https://www.securityfocus.com/bid/108013
Trust: 0.7
url:https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/adv190017
Trust: 0.6
url:https://source.android.com/security/bulletin/2020-07-01
Trust: 0.6
url:https://nvd.nist.gov/vuln/detail/cve-2019-9502
Trust: 0.6
url:https://vigilance.fr/vulnerability/google-android-pixel-multiple-vulnerabilities-of-july-2020-32744
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2020.2309/
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2022.0614
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2022.0215
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2022.0610
Trust: 0.6
url:https://cwe.mitre.org/data/definitions/787.html
Trust: 0.1
url:https://nvd.nist.gov
Trust: 0.1
url:https://www.kb.cert.org/vuls/id/166939
Trust: 0.1
sources:
            
            
            CERT/CC: VU#166939 // 
            
            
            
            VULHUB: VHN-160937 // 
            
            
            
            VULMON: CVE-2019-9502 // 
            
            
            
            BID: 108013 // 
            
            
            
            JVNDB: JVNDB-2019-002702 // 
            
            
            
            CNNVD: CNNVD-201904-964 // 
            
            
            
            NVD: CVE-2019-9502

CREDITS
Hugues Anguelkov
Trust: 0.9
sources:
            
            
            BID: 108013 // 
            
            
            
            CNNVD: CNNVD-201904-964

SOURCES
db:CERT/CCid:VU#166939
db:VULHUBid:VHN-160937
db:VULMONid:CVE-2019-9502
db:BIDid:108013
db:JVNDBid:JVNDB-2019-002702
db:CNNVDid:CNNVD-201904-964
db:NVDid:CVE-2019-9502

LAST UPDATE DATE
2024-11-23T20:02:16.840000+00:00

SOURCES UPDATE DATE
db:CERT/CCid:VU#166939date:2019-04-23T00:00:00
db:VULHUBid:VHN-160937date:2020-02-10T00:00:00
db:VULMONid:CVE-2019-9502date:2020-02-10T00:00:00
db:BIDid:108013date:2019-04-17T00:00:00
db:JVNDBid:JVNDB-2019-002702date:2019-04-19T00:00:00
db:CNNVDid:CNNVD-201904-964date:2022-03-10T00:00:00
db:NVDid:CVE-2019-9502date:2024-11-21T04:51:44.727

SOURCES RELEASE DATE
db:CERT/CCid:VU#166939date:2019-04-17T00:00:00
db:VULHUBid:VHN-160937date:2020-02-03T00:00:00
db:VULMONid:CVE-2019-9502date:2020-02-03T00:00:00
db:BIDid:108013date:2019-04-17T00:00:00
db:JVNDBid:JVNDB-2019-002702date:2019-04-19T00:00:00
db:CNNVDid:CNNVD-201904-964date:2019-04-17T00:00:00
db:NVDid:CVE-2019-9502date:2020-02-03T21:15:11.547