Unrated severityNVD Advisory· Published Jan 11, 2022· Updated Aug 4, 2024
CVE-2021-46283
CVE-2021-46283
Description
nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
45- Linux/Linux kerneldescription
- Range: <5.12.13
- osv-coords43 versionspkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-preempt&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/kernel-livepatch-SLE15-SP3_Update_12&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP3pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP3pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP3pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP3pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3
< 5.3.18-150300.59.43.1+ 42 more
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1.150300.18.27.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1.150300.18.27.1
- (no CPE)range: < 5.3.18-150300.59.43.1.150300.18.27.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 1-150300.7.3.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.71.1
- (no CPE)range: < 5.3.18-150300.71.1
- (no CPE)range: < 5.3.18-150300.71.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.71.1
- (no CPE)range: < 5.3.18-150300.38.37.1
- (no CPE)range: < 5.3.18-150300.59.43.1
- (no CPE)range: < 5.3.18-150300.71.1
- (no CPE)range: < 5.3.18-150300.59.43.1
Patches
Vulnerability mechanics
References
3- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13mitrex_refsource_MISC
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/mitrex_refsource_MISC
- syzkaller.appspot.com/bugmitrex_refsource_MISC
News mentions
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