CVE-2024-2236 (GCVE-0-2024-2236)

Vulnerability from cvelistv5 – Published: 2024-03-06 22:07 – Updated: 2025-11-20 18:18
VLAI?
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 ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
References
https://access.redhat.com/errata/RHSA-2024:9404 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:3530 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:3534 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-2236 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2245218 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Affected: 0 , < 9.4.0 (semver)
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.10.0-11.el9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.10.0-11.el9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
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    Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:1.10.0-10.el9_2.1 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
    cpe:/o:redhat:rhel_eus:9.2::baseos
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.10.0-10.el9_4.1 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.4::appstream
    cpe:/o:redhat:rhel_eus:9.4::baseos
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    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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\"product\": \"Red Hat Enterprise Linux 8\", \"packageName\": \"libgcrypt\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-10-20T00:00:00+00:00\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2024-03-06T00:00:00+00:00\", \"value\": \"Made public.\"}], \"datePublic\": \"2024-03-06T00:00:00.000Z\", \"references\": [{\"url\": \"https://access.redhat.com/errata/RHSA-2024:9404\", \"name\": \"RHSA-2024:9404\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:3530\", \"name\": \"RHSA-2025:3530\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:3534\", \"name\": \"RHSA-2025:3534\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2024-2236\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2245218\", \"name\": \"RHBZ#2245218\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A timing-based side-channel flaw was found in libgcrypt\u0027s RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-208\", \"description\": \"Observable Timing Discrepancy\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-20T18:18:15.192Z\"}, \"x_redhatCweChain\": \"CWE-385-\u003eCWE-208: Covert Timing Channel leads to Observable Timing Discrepancy\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-2236\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-20T18:18:15.192Z\", \"dateReserved\": \"2024-03-06T20:10:15.745Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2024-03-06T22:07:16.617Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.