ZeroHour
The Hacker Newspublished ()ingested @TheHackersNews

Google Warns of Pixel Firmware Security Flaw Exploited as Zero

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2024-29748
+1 in the same advisory: …29745
Local Privilege Escalation in Google Pixel (Android), Exploited in the Wild

Google Pixel devices running affected Android software contain a privilege escalation flaw (CVE-2024-29748) caused by a logic error that allows a security bypass. Exploitation is local to the device and requires user interaction, but the attacker needs no additional execution privileges to complete the escalation. A successful exploit grants the attacker elevated privileges on the device with high impact on confidentiality, integrity, and availability. All unpatched Google Android Pixel devices are affected; the source data does not specify exact affected version ranges. The flaw is being exploited in the wild: CISA added it to the KEV catalog on 2024-04-04, and press reporting describes Google patching actively exploited Pixel zero-day flaws, with reporting tying the exploitation to forensic/phone-cracking companies.

Do: Update Pixel devices with Google's latest Android security update and verify the Android security patch level is April 2024 or later in Settings > About phone; this is a CISA KEV entry, so apply vendor mitigations promptly or discontinue use per the KEV required action. Because exploitation requires local access and user interaction, restrict device access to untrusted parties and avoid side-loading untrusted apps on unpatched devices. No public proof-of-concept is known, but active exploitation means patching should not wait.

7.8
group max
<1% KEV
  • google Android Pixel (Pixel smartphones, Android OS/firmware)
mass≈tens of millions of Pixel smartphones (estimated active install base; only devices not yet on the vendor's security update are exploitable)
CVE-2024-32896
Local Privilege Escalation in Google Android Pixel Kernel

CVE-2024-32896 is a logic error (CWE-670/CWE-783) in Android code on Google Pixel devices that allows a bypass leading to local escalation of privilege. The flaw is triggered through local access with no additional execution privileges required, and user interaction is needed for exploitation to succeed. A successful attack yields high impact to confidentiality, integrity, and availability on the affected device (CVSS 3.1 base score 7.8), giving an attacker elevated control of the phone. Per CISA's advisory, only Google Pixel devices running Android are affected. The vulnerability is being exploited in the wild: it was added to CISA's KEV catalog on 2024-06-13, and news coverage describes limited, targeted exploitation of the Android kernel flaw as a zero-day, with users urged to install the latest security updates.

Do: Apply the latest Android security updates from Google (June 2024 security patch level or later) to all Pixel devices, per vendor instructions and CISA's required action. Users can verify their patch level under Settings > About phone > Android security update. Given reports of limited, targeted zero-day exploitation, prioritize patching high-risk users and treat the flaw as a post-compromise privilege-escalation risk.

7.83% KEV
  • google Android (Pixel)
masstens of millions of Pixel devices (estimated active Pixel install base; exact count unknown)
CVE-2024-4610
Use-After-Free in Arm Mali Bifrost/Valhall GPU Kernel Drivers Exploited in the Wild

CVE-2024-4610 is a use-after-free (CWE-416) in Arm's Bifrost and Valhall Mali GPU kernel drivers, affecting driver builds from r34p0 through r40p0. A local, non-privileged user can trigger improper GPU memory processing operations that cause the driver to access already-freed memory. A successful exploit can yield high-impact outcomes — confidentiality, integrity and availability are all rated high, implying kernel-level information disclosure or code execution in the context of the GPU driver — and it could also be chained with other bugs in remote exploitation chains. Any device shipping a Mali Bifrost/Valhall driver in the affected range is exposed, including Android smartphones and other SoC-based products from vendors that integrate Mali GPUs. The flaw is being actively exploited in the wild: Arm warned of in-the-wild zero-day use, CISA added it to the Known Exploited Vulnerabilities catalog on 2024-06-12, and related reporting ties it to spyware-grade exploitation (Intellexa/Predator and a Google warning about a Pixel firmware zero-day).

Do: Update to a fixed Arm Mali Bifrost/Valhall GPU kernel driver release newer than r40p0, which for most users means applying the latest Android/SoC/device vendor firmware updates (e.g., Google's updated Pixel firmware). Organizations managing fleets should inventory devices built on affected Mali driver versions (Pixel, MediaTek Dimensity, Exynos handsets; Rockchip/Amlogic boards) and prioritize them for patching given confirmed in-the-wild exploitation. Federal agencies must apply vendor mitigations per CISA KEV requirements within the mandated deadline, and defenders should treat local or chained remote exploitation paths as realistic, consistent with the spyware-usage reporting.

7.8<1% KEV
  • Arm Bifrost GPU Kernel Driver r34p0 through r40p0
  • Arm Valhall GPU Kernel Driver r34p0 through r40p0
mass≈hundreds of millions of Android devices and SoC-based systems with Mali Bifrost/Valhall GPUs in the affected driver range
Full article533 words · extracted from thehackernews.com · click to collapse

Ravie LakshmananJun 13, 2024Mobile Security / Vulnerability

Google has warned that a security flaw impacting Pixel Firmware has been exploited in the wild as a zero-day.

The high-severity vulnerability, tagged as CVE-2024-32896, has been described as an elevation of privilege issue in Pixel Firmware.

The company did not share any additional details related to the nature of attacks exploiting it, but noted "there are indications that CVE-2024-32896 may be under limited, targeted exploitation."

The June 2024 security update addresses a total of 50 security vulnerabilities, five of which relate to various components in Qualcomm chipsets.

Some of the notable issues patched include denial-of-service (DoS) issue impacting Modem, and numerous information disclosure flaws affecting GsmSs, ACPM, and Trusty.

The updates are available for supported Pixel devices, such as Pixel 5a with 5G, Pixel 6a, Pixel 6, Pixel 6 Pro, Pixel 7, Pixel 7 Pro, Pixel 7a, Pixel 8, Pixel 8 Pro, Pixel 8a, and Pixel Fold.

Earlier this April, Google resolved two security flaws in the bootloader and firmware components (CVE-2024-29745 and CVE-2024-29748) that were weaponized by forensic companies to steal sensitive data.

Then last week, Arm notified users of a memory-related vulnerability (CVE-2024-4610) in Bifrost and Valhall GPU kernel drivers that has come under active exploitation.

Update

The maintainers of GrapheneOS, an open-source security and privacy focused Android fork, have revealed that CVE-2024-32896 addresses a previously incorporated partial solution for CVE-2024-29748 and that they are not specific to Pixel devices. However, the mitigations that have been added are specific to Pixels.

"CVE-2024-32896 and CVE-2024-29748 refer to the same vulnerability of interrupting reboot for wipes via the device admin API, which applies to all devices," they said. "CVE-2024-32896 is a full fix in AOSP as part of Android 14 QPR3. It's not at all Pixel specific."

"CVE-2024-29748 was a mitigation for the issue implemented in the Pixel bootloader. Full solution is implementing wipe-without-reboot, which is now a standard feature in Android 14 QPR3 released as part of AOSP."

When reached for comment, Google confirmed that the issue impacts the broader Android platform and that's it working with OEM partners to apply the fixes where applicable. The entire statement is reproduced below -

Android security is aware of this issue, and after further review, this issue does impact Android platform. This vulnerability requires physical access to the device to exploit and interrupts the factory reset process. Additional exploits would be needed to compromise the device.

Out of an abundance of caution, we marked this as 'may be under limited, targeted exploitation' in the Pixel security bulletin after security researchers published examples of how to exploit this vulnerability online. Pixel devices that have installed the latest security update are protected.

We are prioritizing applicable fixes for other Android OEM partners and will roll them out as soon as they are available. As a best security practice, users should always update their devices whenever there are new security updates available.

(The story was updated after publication on June 19, 2024, to clarify that CVE-2024-32896 is not limited to Pixel devices.)

Found this article interesting? Follow us on Google News, Twitter and LinkedIn to read more exclusive content we post.

Text extracted automatically; images, tables and formatting may be missing. Original: https://thehackernews.com/2024/06/google-warns-of-pixel-firmware-security.html