Vulnerability Details 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.)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 32.5%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 7.2
References
- 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/
- 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/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/
- https://security.netapp.com/advisory/ntap-20210625-0001/
- 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/
- 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/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/
- https://security.netapp.com/advisory/ntap-20210625-0001/
- https://www.openwall.com/lists/oss-security/2021/05/11/16
Products affected by CVE-2021-32606
-
cpe:2.3:o:fedoraproject:fedora:32
-
cpe:2.3:o:fedoraproject:fedora:33
-
cpe:2.3:o:fedoraproject:fedora:34
-
cpe:2.3:o:linux:linux_kernel:5.11
-
cpe:2.3:o:linux:linux_kernel:5.11.1
-
cpe:2.3:o:linux:linux_kernel:5.11.10
-
cpe:2.3:o:linux:linux_kernel:5.11.11
-
cpe:2.3:o:linux:linux_kernel:5.11.12
-
cpe:2.3:o:linux:linux_kernel:5.11.13
-
cpe:2.3:o:linux:linux_kernel:5.11.14
-
cpe:2.3:o:linux:linux_kernel:5.11.15
-
cpe:2.3:o:linux:linux_kernel:5.11.16
-
cpe:2.3:o:linux:linux_kernel:5.11.17
-
cpe:2.3:o:linux:linux_kernel:5.11.18
-
cpe:2.3:o:linux:linux_kernel:5.11.19
-
cpe:2.3:o:linux:linux_kernel:5.11.2
-
cpe:2.3:o:linux:linux_kernel:5.11.20
-
cpe:2.3:o:linux:linux_kernel:5.11.21
-
cpe:2.3:o:linux:linux_kernel:5.11.22
-
cpe:2.3:o:linux:linux_kernel:5.11.3
-
cpe:2.3:o:linux:linux_kernel:5.11.4
-
cpe:2.3:o:linux:linux_kernel:5.11.5
-
cpe:2.3:o:linux:linux_kernel:5.11.6
-
cpe:2.3:o:linux:linux_kernel:5.11.7
-
cpe:2.3:o:linux:linux_kernel:5.11.8
-
cpe:2.3:o:linux:linux_kernel:5.11.9
-
cpe:2.3:o:linux:linux_kernel:5.12
-
cpe:2.3:o:linux:linux_kernel:5.12.1
-
cpe:2.3:o:linux:linux_kernel:5.12.2
-
cpe:2.3:o:linux:linux_kernel:5.12.3
-
cpe:2.3:o:linux:linux_kernel:5.12.4
-
cpe:2.3:o:linux:linux_kernel:5.12.5
-
cpe:2.3:o:linux:linux_kernel:5.12.6
-
cpe:2.3:o:linux:linux_kernel:5.12.7
-
cpe:2.3:o:linux:linux_kernel:5.12.8