CVE-2022-49762

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49762
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49762.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49762
Related
Published
2025-05-01T15:15:58Z
Modified
2025-05-02T14:49:39.824238Z
Summary
[none]
Details

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

ntfs: check overflow when iterating ATTR_RECORDs

Kernel iterates over ATTRRECORDs in mft record in ntfsattrfind(). Because the ATTRRECORDs are next to each other, kernel can get the next ATTRRECORD from end address of current ATTRRECORD, through current ATTR_RECORD length field.

The problem is that during iteration, when kernel calculates the end address of current ATTR_RECORD, kernel may trigger an integer overflow bug in executing a = (ATTR_RECORD*)((u8*)a + le32_to_cpu(a->length)). This may wrap, leading to a forever iteration on 32bit systems.

This patch solves it by adding some checks on calculating end address of current ATTR_RECORD during iteration.

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
5.10.158-1

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
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2

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
6.0.10-1

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
6.0.10-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}