CVE-2021-46975

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-46975
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
CVSS

No CVSS.

References

No reference.

Configurations

No configuration.

History

19 Mar 2024, 14:15

Type Values Removed Values Added
References
  • {'url': 'https://git.kernel.org/stable/c/fbf85a34ce17c4cf0a37ee253f4c582bbfb8231b', 'name': 'https://git.kernel.org/stable/c/fbf85a34ce17c4cf0a37ee253f4c582bbfb8231b', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/671c54ea8c7ff47bd88444f3fffb65bf9799ce43', 'name': 'https://git.kernel.org/stable/c/671c54ea8c7ff47bd88444f3fffb65bf9799ce43', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/d3598eb3915cc0c0d8cab42f4a6258ff44c4033e', 'name': 'https://git.kernel.org/stable/c/d3598eb3915cc0c0d8cab42f4a6258ff44c4033e', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/da50f56e826e1db141693297afb99370ebc160dd', 'name': 'https://git.kernel.org/stable/c/da50f56e826e1db141693297afb99370ebc160dd', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6', 'name': 'https://git.kernel.org/stable/c/2671fa4dc0109d3fb581bc3078fdf17b5d9080f6', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/baea536cf51f8180ab993e374cb134b5edad25e2', 'name': 'https://git.kernel.org/stable/c/baea536cf51f8180ab993e374cb134b5edad25e2', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/9b288479f7a901a14ce703938596438559d7df55', 'name': 'https://git.kernel.org/stable/c/9b288479f7a901a14ce703938596438559d7df55', 'tags': [], 'refsource': ''}
  • {'url': 'https://git.kernel.org/stable/c/68122479c128a929f8f7bdd951cfdc8dd0e75b8f', 'name': 'https://git.kernel.org/stable/c/68122479c128a929f8f7bdd951cfdc8dd0e75b8f', 'tags': [], 'refsource': ''}
Summary 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.

27 Feb 2024, 19:04

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-27 19:04

Updated : 2024-04-16 18:42

NVD link : CVE-2021-46975

Mitre link : CVE-2021-46975

CVE.ORG link : CVE-2021-46975

JSON object : View

Products Affected

No product.

CWE

No CWE.