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Qualcomm fixed a zero

criticalExploit / PoC exploited in the wildimportance 60CVE-2024-43047CVE-2024-33066

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2024-33066
Memory corruption while redirecting log file to any file location with any file name.

Memory corruption while redirecting log file to any file location with any file name.

NVD description · AI analysis pending
9.8<1%
  • qualcomm snapdragon x65 5g modem-rf system firmware
  • qualcomm sdx65m firmware
  • qualcomm sdx55 firmware
  • +1 more
CVE-2024-43047
Use-After-Free in Qualcomm FastConnect and QCA Chipset Firmware

CVE-2024-43047 is a use-after-free vulnerability (CWE-416) in the firmware of several Qualcomm connectivity chipsets and the QAM8295P automotive SoC, where maintaining memory maps of high-level operating system (HLOS) memory causes memory corruption. The flaw is scored with a local attack vector and low privileges required (CVSS 3.1: 7.8), so an attacker needs some local foothold, such as a malicious app on an Android device, and can then leverage the memory corruption for high-impact confidentiality, integrity, and availability effects, in practice a privilege escalation to system or kernel level. Anyone running devices built on the affected chips is exposed, including Android smartphones with FastConnect 6700/6800/6900/7800, devices using QCA-series Wi-Fi chips, and automotive platforms using the QAM8295P. The vulnerability is confirmed exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2024-10-08, and news reports describe targeted, limited Android attacks, though ransomware use is unknown and EPSS remains modest at 0.7%.

Do: Apply Qualcomm's fix through your device or system OEM: install the latest Android security updates on affected phones, and update firmware/drivers for QCA-series Wi-Fi chips and the QAM8295P automotive SoC per vendor instructions; because this is a local firmware flaw, there is no user-side mitigation short of patching. Organizations under CISA KEV must remediate per the required action (apply vendor remediations or discontinue use). Prioritize an inventory of Android devices with FastConnect 6700/6800/6900/7800 and QCA6xxx/65xxx chips, noting this flaw is being used in targeted attacks rather than mass-scale campaigns.

7.8<1% KEV
  • qualcomm fastconnect 6700 firmware
  • qualcomm fastconnect 6800 firmware
  • qualcomm fastconnect 6900 firmware
  • +9 more
massplausibly hundreds of millions of devices (affected Qualcomm FastConnect and QCA connectivity chips ship across Android smartphones, PCs with Qualcomm Wi-Fi…
Full article528 words · extracted from securityaffairs.com · click to collapse

Qualcomm warns of 20 flaws in its products, including a potential zero-day vulnerability, in the DSP service that impacts multiple chipsets.

Qualcomm addressed 20 vulnerabilities in its products, including a potential zero-day issue tracked as CVE-2024-43047 (CVSS score 7.8).

The vulnerability stems from a use-after-free bug that could lead to memory corruption.

The zero-day vulnerability resides in the Digital Signal Processor (DSP) service and impacts dozens of chipsets.

“Currently, the DSP updates header buffers with unused DMA handle fds. In the put_args section, if any DMA handle FDs are present in the header buffer, the corresponding map is freed. However, since the header buffer is exposed to users in unsigned PD, users can update invalid FDs. If this invalid FD matches with any FD that is already in use, it could lead to a use-after-free (UAF) vulnerability.” reads the DSP kernel commit. “As a solution,add DMA handle references for DMA FDs, and the map for the FD will be freed only when a reference is found.”

The flaw was reported by cybersecurity researchers Seth Jenkins from Google Project Zero and Conghui Wang from Amnesty International Security Lab. Jenkins Hopefully recommends addressing the issue on Android devices as soon as possible.

I found an issue in collaboration with Amnesty and TAG that we have indication may be used ITW, CVE-2024-43047. Seehttps://t.co/yvGrGxw5kv
for the details. Hopefully the bug will be patched on Android devices very soon ….

— Seth Jenkins (@__sethJenkins) October 7, 2024

Google Threat Analysis Group claims that CVE-2024-43047 may be under limited, targeted exploitation, Wang also confirms in-the-wild activity. 

“There are indications from Google Threat Analysis Group that CVE-2024-43047 may be under limited, targeted exploitation.” reads the company’s advisory. “Patches for the issue affecting FASTRPC driver have been made available to OEMs together with a strong recommendation to deploy the update on affected devices as soon as possible. Please contact your device manufacturer for more information on the patch status about specific devices.”

The researchers haven’t published details about the attacks exploiting the CVE-2024-43047, however, the reporting organizations are known for investigating cyberattacks linked to commercial spyware vendors.

Below are the chipsets impacted by this vulnerability:

FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, QAM8295P, QCA6174A, QCA6391, QCA6426, QCA6436, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6688AQ, QCA6696, QCA6698AQ, QCS410, QCS610, QCS6490, Qualcomm® Video Collaboration VC1 Platform, Qualcomm® Video Collaboration VC3 Platform, SA4150P, SA4155P, SA6145P, SA6150P, SA6155P, SA8145P, SA8150P, SA8155P, SA8195P, SA8295P, SD660, SD865 5G, SG4150P, Snapdragon 660 Mobile Platform, Snapdragon 680 4G Mobile Platform, Snapdragon 685 4G Mobile Platform (SM6225-AD), Snapdragon 8 Gen 1 Mobile Platform, Snapdragon 865 5G Mobile Platform, Snapdragon 865+ 5G Mobile Platform (SM8250-AB), Snapdragon 870 5G Mobile Platform (SM8250-AC), Snapdragon 888 5G Mobile Platform, Snapdragon 888+ 5G Mobile Platform (SM8350-AC), Snapdragon Auto 5G Modem-RF, Snapdragon Auto 5G Modem-RF Gen 2, Snapdragon X55 5G Modem-RF System, Snapdragon XR2 5G Platform, SW5100, SW5100P, SXR2130, WCD9335, WCD9341, WCD9370, WCD9375, WCD9380, WCD9385, WCN3950, WCN3980, WCN3988, WCN3990, WSA8810, WSA8815, WSA8830, WSA8835

Qualcomm also addressed a critical improper input validation flaw, tracked as CVE-2024-33066 (CVSS score 9.8), in WLAN Resource Manager.

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Pierluigi Paganini

(SecurityAffairs – hacking, zero-day)



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