Vulnerability Details : CVE-2023-0361
Potential exploit
A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.
Products affected by CVE-2023-0361
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:gnutls:3.6.8-11.el8_2:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
- cpe:2.3:a:netapp:converged_systems_advisor_agent:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-0361
2.94%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-0361
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.4
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
2.2
|
5.2
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-03-19 |
|
7.4
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
2.2
|
5.2
|
NIST | |
|
7.4
|
HIGH | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
N/A
|
N/A
|
Oracle:CPUOct2023 |
CWE ids for CVE-2023-0361
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-0361
-
https://lists.debian.org/debian-lts-announce/2023/02/msg00015.html
[SECURITY] [DLA 3321-1] gnutls28 security updateMailing List;Third Party Advisory
-
https://github.com/tlsfuzzer/tlsfuzzer/pull/679
Timing attacks - docs and minor fixes by tomato42 · Pull Request #679 · tlsfuzzer/tlsfuzzer · GitHubIssue Tracking;Patch
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z634YBXAJ5VLDI62IOPBVP5K6YFHAWCY/
[SECURITY] Fedora 38 Update: guile-gnutls-3.7.11-1.fc38 - package-announce - Fedora Mailing-Lists
-
https://access.redhat.com/security/cve/CVE-2023-0361
CVE-2023-0361- Red Hat Customer PortalThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WS4KVDOG6QTALWHC2QE4Y7VPDRMLTRWQ/
[SECURITY] Fedora 36 Update: gnutls-3.8.0-2.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://gitlab.com/gnutls/gnutls/-/issues/1050
Timing sidechannel in RSA decryption (#1050) · Issues · gnutls / GnuTLS · GitLabExploit;Issue Tracking;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z634YBXAJ5VLDI62IOPBVP5K6YFHAWCY/
[SECURITY] Fedora 38 Update: guile-gnutls-3.7.11-1.fc38 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20230725-0005/
July 2023 MySQL Server Vulnerabilities in NetApp Products | NetApp Product Security
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFIA3X4IZ3CW7SRQ2UHNHNPMRIAWF2FI/
[SECURITY] Fedora 37 Update: gnutls-3.8.0-1.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFIA3X4IZ3CW7SRQ2UHNHNPMRIAWF2FI/
[SECURITY] Fedora 37 Update: gnutls-3.8.0-1.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS4KVDOG6QTALWHC2QE4Y7VPDRMLTRWQ/
[SECURITY] Fedora 36 Update: gnutls-3.8.0-2.fc36 - package-announce - Fedora Mailing-Lists
-
https://security.netapp.com/advisory/ntap-20230324-0005/
CVE-2023-0361 GNU TLS Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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