CVE-2021-32606

In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.openwall.com/lists/oss-security/2021/05/11/16	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/12/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/13/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/14/1	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/28/1	Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0001/	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:32:::::::*
	cpe:2.3:o:fedoraproject:fedora:33:::::::*
	cpe:2.3:o:fedoraproject:fedora:34:::::::*

Information

Published : 2021-05-11 16:15

Updated : 2021-09-07 15:03

NVD link : CVE-2021-32606

Mitre link : CVE-2021-32606

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

fedoraproject

fedora

linux

linux_kernel

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