CVE-2015-3864

Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allows…

published October 1, 2015

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.8th percentile for exploit probability.

CVSS
—
EPSS
87%
Percentile
99.8
In the wild
Unconfirmed
What it is

⚠️ An integer underflow in the MPEG4Extractor can turn crafted MPEG-4 data into an attacker's playground! Think of this like a faulty ticket machine at a movie theater that accepts tickets from the past, allowing anyone to sneak in without proper validation. This underflow lets attackers manipulate data in an unexpected way, bypassing checks that would normally ensure safety. An attacker could exploit this vulnerability to execute arbitrary code, potentially leading to unauthorized access or control over the device. In a world where your phone is like a vault of personal information, this is a big deal!

Put simply

Think of this like a faulty ticket machine at a movie theater that accepts tickets from the past, allowing anyone to sneak in without proper validation. This underflow lets attackers manipulate data in an unexpected way, bypassing checks that would normally ensure safety. This vulnerability arises from an integer underflow in the MPEG4Extractor::parseChunk function, which allows attackers to craft MPEG-4 files that the system erroneously processes, leading to arbitrary code execution.

What to do

An attacker could exploit this vulnerability to execute arbitrary code, potentially leading to unauthorized access or control over the device. In a world where your phone is like a vault of personal information, this is a big deal! To mitigate this risk, update to Android version 5.1.1 LMY48M or later, ensuring that your device applies all relevant patches. Regularly check for system updates and consider enabling security features that monitor app behavior. You've got this! Keep your devices updated and secure, and you'll be a security hero in no time! 🦸

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.87125 · 99.8th percentile
Published
2015-10-01T00:00Z
EPSS history
Timeline
  • 01 OCT 00:00Z
    Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allows…
    cvelistv5