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.

suse_linux SUSE-SU-2025:02773-1: SUSE SLES15 : Security update for libgcrypt (Moderate) (SUSE-SU-2025:02773-1)

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.

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The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2025:02756-1 advisory.

    - CVE-2024-2236: timing-based side-channel flaw in RSA implementation can lead to decryption of RSA     ciphertexts (bsc#1221107).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02752-1 advisory.

    - CVE-2024-2236: timing-based side-channel flaw in RSA implementation can lead to decryption of RSA     ciphertexts (bsc#1221107).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02719-1 advisory.

    - CVE-2024-2236: timing-based side-channel flaw in RSA implementation can lead to decryption of RSA     ciphertexts (bsc#1221107).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02464-2 advisory.

    - CVE-2024-2236: timing-based side-channel flaw in RSA implementation can lead to decryption of RSA     ciphertexts (bsc#1221107).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02447-1 advisory.

    - CVE-2024-2236: Fixed timing based side-channel in RSA implementation. (bsc#1221107)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:3530 advisory.

    The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.

    Security Fix(es):

    * libgcrypt: vulnerable to Marvin Attack (CVE-2024-2236)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:3534 advisory.

    The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.

    Security Fix(es):

    * libgcrypt: vulnerable to Marvin Attack (CVE-2024-2236)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2024-2236)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-9404 advisory.

    [1.10.0-11]
    - Fix CVE-2024-2236 (RHEL-34579)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-9764fc1fc9 advisory.

    Automatic update for mingw-libgcrypt-1.10.3-1.fc41.

    ##### **Changelog**

    ```
    * Fri Mar  8 2024 Richard W.M. Jones <rjones@redhat.com> - 1.10.3-1
    - Rebase to libgcrypt 1.10.3 to match Fedora (RHBZ#2268272)
    - Add *.pc (pkgconf) files

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:9404 advisory.

    The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.

    Security Fix(es):

    * libgcrypt: vulnerable to Marvin Attack (CVE-2024-2236)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-736 advisory.

    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. (CVE-2024-2236)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
504142	Siemens SIMATIC S7-1500 Observable Timing Discrepancy (CVE-2024-2236)	Tenable OT Security	Tenable.ot	medium
249217	SUSE SLES12 Security Update : libgcrypt (SUSE-SU-2025:02756-1)	Nessus	SuSE Local Security Checks	medium
249090	SUSE SLES15 Security Update : libgcrypt (SUSE-SU-2025:02752-1)	Nessus	SuSE Local Security Checks	medium
245589	SUSE SLED15 / SLES15 Security Update : libgcrypt (SUSE-SU-2025:02719-1)	Nessus	SuSE Local Security Checks	medium
243295	SUSE SLES15 Security Update : libgcrypt (SUSE-SU-2025:02464-2)	Nessus	SuSE Local Security Checks	medium
242519	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libgcrypt (SUSE-SU-2025:02447-1)	Nessus	SuSE Local Security Checks	medium
233933	RHEL 9 : libgcrypt (RHSA-2025:3530)	Nessus	Red Hat Local Security Checks	medium
233909	RHEL 9 : libgcrypt (RHSA-2025:3534)	Nessus	Red Hat Local Security Checks	medium
227729	Linux Distros Unpatched Vulnerability : CVE-2024-2236	Nessus	Misc.	medium
211552	Oracle Linux 9 : libgcrypt (ELSA-2024-9404)	Nessus	Oracle Linux Local Security Checks	medium
211410	Fedora 41 : mingw-libgcrypt (2024-9764fc1fc9)	Nessus	Fedora Local Security Checks	medium
210795	RHEL 9 : libgcrypt (RHSA-2024:9404)	Nessus	Red Hat Local Security Checks	medium
208981	Amazon Linux 2023 : libgcrypt, libgcrypt-devel (ALAS2023-2024-736)	Nessus	Amazon Linux Local Security Checks	medium

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