CVE-2022-48806

Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48806
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48806.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48806
Related
Published
2024-07-16T12:15:04Z
Modified
2024-09-18T03:22:36.976474Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

eeprom: ee1004: limit i2c reads to I2CSMBUSBLOCK_MAX

Commit effa453168a7 ("i2c: i801: Don't silently correct invalid transfer size") revealed that ee1004eepromread() did not properly limit how many bytes to read at once.

In particular, i2csmbusreadi2cblockdataor_emulated() takes the length to read as an u8. If count == 256 after taking into account the offset and page boundary, the cast to u8 overflows. And this is common when user space tries to read the entire EEPROM at once.

To fix it, limit each read to I2CSMBUSBLOCKMAX (32) bytes, already the maximum length i2csmbusreadi2cblockdataoremulated() allows.

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.103-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.16.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.16.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}