CVE-2021-47086
N/A
N/A
Summary
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:
- We'd send an pipe enablement request with an invalid source object.
- Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < b10c7d745615a092a50c2e03ce70446d2bec2aca | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 311601f114859d586d5ef8833d60d3aa23282161 | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 982b6ba1ce626ef87e5c29f26f2401897554f235 | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 48c76fc53582e7f13c1e0b11c916e503256c4d0b | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 52ad5da8e316fa11e3a50b3f089aa63e4089bf52 | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 53ccdc73eedaf0e922c45b569b797d2796fbaafa | affected |
| Linux | Linux | bdb6e697b2a76c541960b86ab8fda88f3de1adf2 < 75a2f31520095600f650597c0ac41f48b5ba0068 | affected |
| Linux | Linux | 3.3 | affected |
| Linux | Linux | 0 < 3.3 | unaffected |
| Linux | Linux | 4.4.297 <= 4.4.* | unaffected |
| Linux | Linux | 4.9.295 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.260 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.223 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.169 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.89 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.12 <= 5.15.* | unaffected |
| Linux | Linux | 5.16 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59
- https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca
- https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161
- https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235
- https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b
- https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52
- https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa
- https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068
References
- https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59
- https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca
- https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161
- https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235
- https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b
- https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52
- https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa
- https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068
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