CVE-2021-47086

Advisory lineage Upstream: 0 Downstream: 7
Analyzed
Published: 04 Mar 2024, 18:06
Last modified:11 May 2026, 13:47

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Mar 2024, 18:06
Published
Vulnerability first disclosed
11 May 2026, 13:47
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 3%

Affected Systems

  • linux•linux

    ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < b10c7d745615a092a50c2e03ce70446d2bec2aca | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 311601f114859d586d5ef8833d60d3aa23282161 | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 982b6ba1ce626ef87e5c29f26f2401897554f235 | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 48c76fc53582e7f13c1e0b11c916e503256c4d0b | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 52ad5da8e316fa11e3a50b3f089aa63e4089bf52 | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 53ccdc73eedaf0e922c45b569b797d2796fbaafa | ≥ bdb6e697b2a76c541960b86ab8fda88f3de1adf2, < 75a2f31520095600f650597c0ac41f48b5ba0068 | 3.3

  • linux•linux_kernel

    < 4.4.297 | ≥ 4.5, < 4.9.295 | ≥ 4.10, < 4.14.260 | ≥ 4.15, < 4.19.223 | ≥ 4.20, < 5.4.169 | ≥ 5.5, < 5.10.89 | ≥ 5.11, < 5.15.12 | 5.16:rc1 | 5.16:rc2 | 5.16:rc3 | 5.16:rc4 | 5.16:rc5 | 5.16:rc6

References (8)