{"id":"CVE-2024-2236","title":"A timing-based side-channel flaw was found in libgcrypt's RSA implementation","summary":"A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-385"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux BaseOS EUS (v.9.2)","affected":["enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux_appstream_eus_v_9_2","enterprise_linux_appstream_eus_v_9_4","enterprise_linux_appstream_v_9","enterprise_linux_baseos_eus_v_9_2","enterprise_linux_baseos_eus_v_9_4","enterprise_linux_baseos_v_9"],"patched":["enterprise_linux_appstream_eus_v_9_2","enterprise_linux_appstream_eus_v_9_4","enterprise_linux_appstream_v_9","enterprise_linux_baseos_eus_v_9_2","enterprise_linux_baseos_eus_v_9_4","enterprise_linux_baseos_v_9"],"published":"2024-03-06","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:43.130","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-2236","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:9404","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:3530","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:3534","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-2236","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2245218","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2024-2236","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2245218","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2268268","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-2236.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-2236"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-2236"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.0114,"epssPercentile":0.66452,"ingestedAt":"2026-10-13T21:58:14.101Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2024-03-07T20:07:33.124826Z"},"slug":"CVE-2024-2236","body":"## Overview\n\nA timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2025:3534** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.2), Red Hat Enterprise Linux BaseOS EUS (v.9.2) · released 2025-04-02 · [advisory](https://access.redhat.com/errata/RHSA-2025:3534)\n- **RHSA-2025:3530** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.4), Red Hat Enterprise Linux BaseOS EUS (v.9.4) · released 2025-04-02 · [advisory](https://access.redhat.com/errata/RHSA-2025:3530)\n- **RHSA-2024:9404** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9) · released 2024-11-12 · [advisory](https://access.redhat.com/errata/RHSA-2024:9404)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · updated 2026-10-13 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-2236.json)","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}