Vulnerability Monitor

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CVE-2020-29369

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

Published

2020-11-28T07:15:11.537

Last Modified

2024-11-21T05:23:55.623

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-362

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 5.4.54	Yes
Operating System	linux	linux_kernel	< 5.7.11	Yes
Application	netapp	hci_management_node	-	Yes
Application	netapp	solidfire	-	Yes
Hardware	netapp	hci_compute_node	-	Yes
Hardware	netapp	hci_storage_node	-	Yes

References

http://www.openwall.com/lists/oss-security/2021/02/10/6 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/02/19/8 Mailing List, Patch, Third Party Advisory ([email protected])
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11 Release Notes, Vendor Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c Patch, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20210115-0001/ Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/02/10/6 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/02/19/8 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210115-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)