0.0
NA
CVE-2021-46975
CVRF-2022-1234
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

INFO

Published Date :

Feb. 27, 2024, 7:04 p.m.

Last Modified :

March 19, 2024, 2:15 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Public PoC/Exploit Available at Github

CVE-2021-46975 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-46975 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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NaInSec/CVE-LIST

Ini adalah repository kumpulan CVE v.5

allcve cve cvelist newcve

Updated: 1 month, 3 weeks ago
2 stars 0 fork 0 watcher
Born at : March 24, 2024, 3:01 p.m. This repo has been linked 1214 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-46975 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-46975 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Mar. 19, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Mar. 19, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: Make global sysctls readonly in non-init netns These sysctls point to global variables: - NF_SYSCTL_CT_MAX (&nf_conntrack_max) - NF_SYSCTL_CT_EXPECT_MAX (&nf_ct_expect_max) - NF_SYSCTL_CT_BUCKETS (&nf_conntrack_htable_size_user) Because their data pointers are not updated to point to per-netns structures, they must be marked read-only in a non-init_net ns. Otherwise, changes in any net namespace are reflected in (leaked into) all other net namespaces. This problem has existed since the introduction of net namespaces. The current logic marks them read-only only if the net namespace is owned by an unprivileged user (other than init_user_ns). Commit d0febd81ae77 ("netfilter: conntrack: re-visit sysctls in unprivileged namespaces") "exposes all sysctls even if the namespace is unpriviliged." Since we need to mark them readonly in any case, we can forego the unprivileged user check altogether. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
    Removed Reference kernel.org https://git.kernel.org/stable/c/da50f56e826e1db141693297afb99370ebc160dd
    Removed Reference kernel.org https://git.kernel.org/stable/c/68122479c128a929f8f7bdd951cfdc8dd0e75b8f
    Removed Reference kernel.org https://git.kernel.org/stable/c/9b288479f7a901a14ce703938596438559d7df55
    Removed Reference kernel.org https://git.kernel.org/stable/c/baea536cf51f8180ab993e374cb134b5edad25e2
    Removed Reference kernel.org https://git.kernel.org/stable/c/d3598eb3915cc0c0d8cab42f4a6258ff44c4033e
    Removed Reference kernel.org https://git.kernel.org/stable/c/fbf85a34ce17c4cf0a37ee253f4c582bbfb8231b
    Removed Reference kernel.org https://git.kernel.org/stable/c/671c54ea8c7ff47bd88444f3fffb65bf9799ce43
    Removed Reference kernel.org https://git.kernel.org/stable/c/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6
  • CVE Translated by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Mar. 19, 2024

    Action Type Old Value New Value
    Removed Translation Title: kernel de Linux Description: En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: conntrack: Hacer que los sysctls globales sean de solo lectura en redes que no son init. Estos sysctls apuntan a variables globales: - NF_SYSCTL_CT_MAX (&nf_conntrack_max) - NF_SYSCTL_CT_EXPECT_MAX (&nf_ct_expect_max) - NF_SYSCTL_CT_BUCKETS (&nf_conntrack_htable_size _user) Porque sus datos Los punteros no se actualizan para apuntar a estructuras por red, deben marcarse como de solo lectura en un ns que no sea init_net. De lo contrario, los cambios en cualquier espacio de nombres de red se reflejan (se filtran) en todos los demás espacios de nombres de red. Este problema existe desde la introducción de los espacios de nombres de red. La lógica actual los marca como de solo lectura si el espacio de nombres de red es propiedad de un usuario sin privilegios (que no sea init_user_ns). El commit d0febd81ae77 ("netfilter: conntrack: volver a visitar sysctls en espacios de nombres sin privilegios") "expone todos los sysctls incluso si el espacio de nombres no tiene privilegios". Dado que en cualquier caso necesitamos marcarlos como de sólo lectura, podemos prescindir por completo de la verificación de usuarios sin privilegios.
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 27, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: Make global sysctls readonly in non-init netns These sysctls point to global variables: - NF_SYSCTL_CT_MAX (&nf_conntrack_max) - NF_SYSCTL_CT_EXPECT_MAX (&nf_ct_expect_max) - NF_SYSCTL_CT_BUCKETS (&nf_conntrack_htable_size_user) Because their data pointers are not updated to point to per-netns structures, they must be marked read-only in a non-init_net ns. Otherwise, changes in any net namespace are reflected in (leaked into) all other net namespaces. This problem has existed since the introduction of net namespaces. The current logic marks them read-only only if the net namespace is owned by an unprivileged user (other than init_user_ns). Commit d0febd81ae77 ("netfilter: conntrack: re-visit sysctls in unprivileged namespaces") "exposes all sysctls even if the namespace is unpriviliged." Since we need to mark them readonly in any case, we can forego the unprivileged user check altogether.
    Added Reference Linux https://git.kernel.org/stable/c/da50f56e826e1db141693297afb99370ebc160dd [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/68122479c128a929f8f7bdd951cfdc8dd0e75b8f [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/9b288479f7a901a14ce703938596438559d7df55 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/baea536cf51f8180ab993e374cb134b5edad25e2 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/d3598eb3915cc0c0d8cab42f4a6258ff44c4033e [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/fbf85a34ce17c4cf0a37ee253f4c582bbfb8231b [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/671c54ea8c7ff47bd88444f3fffb65bf9799ce43 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-46975 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-46975 weaknesses.

NONE - Vulnerability Scoring System
: