CVEvulnerability
CVE-2021-32606
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-05-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-416
Description
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.)
Affected configurations
• linux linux kernel (>= 5.11 < 5.12.9)
• fedoraproject fedora 32
• fedoraproject fedora 33
• fedoraproject fedora 34
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- 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
- http://www.openwall.com/lists/oss-security/2021/05/28/1 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d git.kernel.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210625-0001/ Third Party Advisory
- 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
- http://www.openwall.com/lists/oss-security/2021/05/28/1 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b17c400aeb44daf041627722581ade527bb3c1d git.kernel.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210625-0001/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/05/11/16 Mailing List, Third Party Advisory