VulnerabilityModified
CVE-2021-4202
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel.
HIGH 7.0EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-416
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2022/06/01/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/04/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/07/2Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2036682Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102Exploit, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406Exploit, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15Exploit, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220513-0002/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/01/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/04/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/06/07/2Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2036682Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102Exploit, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406Exploit, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15Exploit, Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220513-0002/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.