2021-0577 | Google Android FLV Extractor out-of-bounds write (A-187161771)
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability was found in Google Android (Smartphone Operating System) (unknown version) and classified as critical. This issue affects some unknown processing of the component FLV Extractor. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-787. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-187161771
The weakness was shared 07/15/2021 as A-187161771. The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2021-0577 since 11/06/2020. The exploitation is known to be easy. An attack has to be approached locally. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/18/2021). It is expected to see the exploit prices for this product increasing in the near future.
Applying a patch is able to eliminate this problem.
VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3
NVD Base Score: 🔒
Class: Memory corruption
Status: Not defined
0-Day Time: 🔒
Created: 07/15/2021 11:23
Updated: 07/18/2021 22:18
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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