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Mallory
Critical

Arbitrary Memory Overwrite in quram library (pre-SMR Jan-2021 Release 1)

IdentifiersCVE-2021-25346CWE-787· Out-of-bounds Write

CVE-2021-25346 is an arbitrary memory overwrite vulnerability in the quram library, affecting versions prior to SMR Jan-2021 Release 1. The vulnerability allows an attacker to overwrite memory locations, potentially leading to arbitrary code execution. The specific vulnerable function is not detailed, but the flaw is due to improper memory handling within the library.

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ANALYST BRIEF

Impact, mitigation & remediation

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Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an attacker to execute arbitrary code in the context of the vulnerable process, which could lead to full compromise of the affected system.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible, restrict access to the vulnerable functionality and monitor for abnormal application behavior. Employ runtime protections such as DEP and ASLR to reduce exploitability.

Remediation

Patch, then assume compromise.

Upgrade the quram library to SMR Jan-2021 Release 1 or later, which contains the fix for this vulnerability.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

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VendorProductType
GoogleAndroidoperating_system

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What this page doesn’t show

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Threat actor evidence

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

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