Medium severity6.5NVD Advisory· Published Feb 4, 2024· Updated Jun 17, 2026
CVE-2023-6240
CVE-2023-6240
Description
A Marvin vulnerability side-channel leakage was found in the RSA decryption operation in the Linux Kernel. This issue may allow a network attacker to decrypt ciphertexts or forge signatures, limiting the services that use that private key.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
98cpe:/a:redhat:enterprise_linux:8::realtime+ 8 more
- cpe:/a:redhat:enterprise_linux:8::realtimerange: 0:4.18.0-553.5.1.rt7.346.el8_10
- cpe:/o:redhat:enterprise_linux:8::baseosrange: 0:4.18.0-553.5.1.el8_10
- cpe:/o:redhat:enterprise_linux:9::baseosrange: 0:5.14.0-427.16.1.el9_4
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- cpe:/o:redhat:enterprise_linux:9
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- Red Hat/Red Hat Enterprise Linux 9.0 Extended Update Supportv52 versions
cpe:/o:redhat:rhel_eus:9.0::baseos+ 1 more
- cpe:/o:redhat:rhel_eus:9.0::baseosrange: 0:5.14.0-70.101.1.el9_0
- cpe:/a:redhat:rhel_eus:9.0::realtimerange: 0:5.14.0-70.101.1.rt21.173.el9_0
- Red Hat/Red Hat Enterprise Linux 9.2 Extended Update Supportv52 versions
cpe:/a:redhat:rhel_eus:9.2::appstream+ 1 more
- cpe:/a:redhat:rhel_eus:9.2::appstreamrange: 0:5.14.0-284.62.1.el9_2
- cpe:/a:redhat:rhel_eus:9.2::nfvrange: 0:5.14.0-284.62.1.rt14.347.el9_2
- osv-coords83 versionspkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:apk/chainguard/linux-vmware-6.12pkg:apk/chainguard/linux-aws-6.12pkg:apk/chainguard/linux-qemu-generic-bootc-boot-installedpkg:apk/chainguard/linux-azure-genericpkg:apk/chainguard/linux-gcp-6.12pkg:apk/chainguard/linux-gcp-6.18pkg:apk/chainguard/linux-gcp-genericpkg:apk/chainguard/linux-qemu-6.12pkg:apk/chainguard/linux-qemu-6.18pkg:apk/chainguard/linux-vmware-genericpkg:apk/chainguard/linux-azure-6.12pkg:apk/chainguard/linux-azure-6.18pkg:apk/chainguard/linux-vmware-6.18pkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-zfcpdumppkg:apk/chainguard/linux-aws-6.18pkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-rt-debug-kvmpkg:rpm/almalinux/kernel-rt-kvmpkg:apk/chainguard/linux-qemu-genericpkg:apk/chainguard/linux-aws-genericpkg:apk/chainguard/linux-qemu-melangepkg:apk/chainguard/linux-qemu-rcpkg:rpm/almalinux/bpftoolpkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rv
< 6.18.21-r0+ 82 more
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 6.12.80-r0
- (no CPE)range: < 6.12.80-r0
- (no CPE)range: < 6.18.10-r0
- (no CPE)range: < 6.18.10-r0
- (no CPE)range: < 6.12.80-r0
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 6.18.10-r0
- (no CPE)range: < 6.12.80-r0
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 6.18.10-r0
- (no CPE)range: < 6.12.80-r0
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 6.18.21-r0
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 4.18.0-553.5.1.rt7.346.el8_10
- (no CPE)range: < 4.18.0-553.5.1.rt7.346.el8_10
- (no CPE)range: < 0
- (no CPE)range: < 6.18.10-r0
- (no CPE)range: < 6.18.16-r0
- (no CPE)range: < 7.0_rc5-r1
- (no CPE)range: < 7.3.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
- (no CPE)range: < 5.14.0-427.16.1.el9_4
Patches
Vulnerability mechanics
References
12- access.redhat.com/security/cve/CVE-2023-6240nvdThird Party Advisory
- people.redhat.com/~hkario/marvin/nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue Tracking
- securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/nvdTechnical Description
- access.redhat.com/errata/RHSA-2024:1881nvd
- access.redhat.com/errata/RHSA-2024:1882nvd
- access.redhat.com/errata/RHSA-2024:2758nvd
- access.redhat.com/errata/RHSA-2024:3414nvd
- access.redhat.com/errata/RHSA-2024:3421nvd
- access.redhat.com/errata/RHSA-2024:3618nvd
- access.redhat.com/errata/RHSA-2024:3627nvd
- security.netapp.com/advisory/ntap-20240628-0002/nvd
News mentions
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