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GoogleOSV:ASB-A-213850092

HistoryJul 01, 2022 - 12:00 a.m.

C2FuzzerVorbisDec: Heap-use-after-free in android::C2DmaBufAllocation::unmap

2022-07-0100:00:00

Google

osv.dev

c2fuzzervorbisdec

memory corruption

c2dmabufallocator

remote information disclosure

user interaction

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

41.0%

JSON

In various functions of C2DmaBufAllocator.cpp, there is a possible memory corruption due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.

References

android.googlesource.com/platform/frameworks/av/+/a12f8a065c081b7aa2d7aaa1df79498c282c53d2

source.android.com/security/bulletin/2022-07-01

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

41.0%

JSON

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