CVE-2021-38208

low-risk
Published 2021-08-08

net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.

Do I need to act?

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0.08% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (12)

Mailing List http://www.openwall.com/lists/oss-security/2021/08/17/1
Mailing List http://www.openwall.com/lists/oss-security/2021/08/17/2
Mailing List http://www.openwall.com/lists/oss-security/2021/08/24/2
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1992810
Mailing List https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
Exploit https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bb...
Mailing List http://www.openwall.com/lists/oss-security/2021/08/17/1
Mailing List http://www.openwall.com/lists/oss-security/2021/08/17/2
Mailing List http://www.openwall.com/lists/oss-security/2021/08/24/2
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1992810
Mailing List https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
Exploit https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bb...
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal