CVE-2019-20432
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due...
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
- Record
CVE-2019-20432- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
- Record
CVE-2019-20432- Updated
- 2026-11-02
EUVDEUVD-2019-10980 No score
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
- Record
EUVD-2019-10980- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r6qv-92wg-r8qx
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due...
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
- Record
GHSA-r6qv-92wg-r8qx- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-20432 is a high vulnerability (CVSS 7.5) in Lustre, published January 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.81%, the 78th percentile. No source names a fixed version.