Vulnerabilities > CVE-2021-32606 - Use After Free vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.)
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://www.openwall.com/lists/oss-security/2021/05/11/16
- http://www.openwall.com/lists/oss-security/2021/05/12/1
- http://www.openwall.com/lists/oss-security/2021/05/13/2
- http://www.openwall.com/lists/oss-security/2021/05/14/1
- http://www.openwall.com/lists/oss-security/2021/05/28/1
- https://security.netapp.com/advisory/ntap-20210625-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d