CVE-2023-53817
linux: In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - avoid null pointer deref in mp...
CVE-2023-53817 is fixed in 36 products on 1 platform, first by ALAS2023-2023-356, released September 27, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie Hellamn value. mpi_cmp_ui() was detecting this if the second parameter was 0, but 1 is passed from dh_is_pubkey_valid(). This causes the null pointer u->d to be dereferenced towards the end of mpi_cmp_ui()
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| dtb-aarch64 · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-64kb · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-debug · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-debuginfo · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-default · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-default-base · opensuse-leap 15.6 | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default-base · sles 15.6 | 6.4.0-150600.23.92.1.150600.12.42.2 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.34.1.150700.17.23.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-devel · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-docs · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-docs · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-headers · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-kvmsmall · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-libbpf · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-livepatch-6.1.55-75.123 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-livepatch-SLE15-SP6_Update_21 · sles 15.6 | 1-150600.13.5.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_10 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:0962-1 | Mar 23, 2026 |
| kernel-livepatch-SLE15-SP7_Update_10 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-build · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-obs-build · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-obs-qa · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-source · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-source · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-syms · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-syms · sles 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| kernel-tools · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| kernel-zfcpdump · opensuse-leap 15.6 | 6.4.0-150600.23.92.1 | SUSE-SU-2026:1041-1 | Mar 25, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.34.1 | SUSE-SU-2026:1081-1 | Mar 26, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.55-1 | DEBIAN-CVE-2023-53817 | Dec 9, 2025 |
| linux · Debian 13.5 (trixie) | 6.5.6-1 | DEBIAN-CVE-2023-53817 | Dec 9, 2025 |
| linux · Debian 14 | 6.5.6-1 | DEBIAN-CVE-2023-53817 | Dec 9, 2025 |
| perf · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| python3-perf · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.55-75.123.amzn2023 | ALAS2023-2023-356 | Sep 27, 2023 |
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