Common Weakness Enumeration

CWE-208

Allowed

Observable Timing Discrepancy

Abstraction: Base · Status: Incomplete

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

357 vulnerabilities reference this CWE, most recent first.

CVE-2023-5981 (GCVE-0-2023-5981)

Vulnerability from cvelistv5 – Published: 2023-11-28 11:49 – Updated: 2026-02-25 18:19
VLAI
Title
Gnutls: timing side-channel in the rsa-psk authentication
Summary
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
CWE
  • CWE-208 - Observable Timing Discrepancy
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:3.6.16-8.el8_9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:3.6.16-5.el8_6.2 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::appstream
    cpe:/o:redhat:rhel_eus:8.6::baseos
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Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:3.6.16-7.el8_8.1 , < * (rpm)
    cpe:/o:redhat:rhel_eus:8.8::baseos
    cpe:/a:redhat:rhel_eus:8.8::appstream
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.7.6-23.el9_3.3 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:3.7.6-21.el9_2.1 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
    cpe:/o:redhat:rhel_eus:9.2::baseos
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-37 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-68 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-158 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-39 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-58 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-13 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-81 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-79 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-22 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-57 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-6 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-15 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-54 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-10 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-26 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-19 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-21 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHODF-4.15-RHEL-9 Unaffected: v4.15.0-103 , < * (rpm)
    cpe:/a:redhat:openshift_data_foundation:4.15::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-22 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-11 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v6.8.1-407 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-19 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v1.0.0-479 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-7 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.4.0-247 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-5 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v1.1.0-227 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.1-470 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v2.9.6-14 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-2 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-24 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-10 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.1.0-525 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.1.0-224 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.28.1-56 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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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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Date Public
2023-11-15 00:00
Show details on NVD website

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CVE-2023-1538 (GCVE-0-2023-1538)

Vulnerability from cvelistv5 – Published: 2023-03-21 00:00 – Updated: 2025-02-27 16:55
VLAI
Title
Observable Timing Discrepancy in answerdev/answer
Summary
Observable Timing Discrepancy in GitHub repository answerdev/answer prior to 1.0.6.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 16:55 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
Assigner
Impacted products
Vendor Product Version
answerdev answerdev/answer Affected: unspecified , < 1.0.6 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2022-42288 (GCVE-0-2022-42288)

Vulnerability from cvelistv5 – Published: 2023-01-13 02:09 – Updated: 2025-04-07 17:56
VLAI
Summary
NVIDIA BMC contains a vulnerability in IPMI handler, where an unauthorized attacker can use certain oracles to guess a valid BMC username, which may lead to an information disclosure.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-07 17:56 UTC
CWE
Impacted products
Vendor Product Version
NVIDIA NVIDIA DGX servers Affected: All BMC firmware versions prior to 00.19.07
Create a notification for this product.
Show details on NVD website

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CVE-2022-39308 (GCVE-0-2022-39308)

Vulnerability from cvelistv5 – Published: 2022-10-14 00:00 – Updated: 2025-04-23 16:50
VLAI
Title
GoCD API authentication of user access tokens subject to timing attack during comparison
Summary
GoCD is a continuous delivery server. GoCD helps you automate and streamline the build-test-release cycle for continuous delivery of your product. GoCD versions from 19.2.0 to 19.10.0 (inclusive) are subject to a timing attack in validation of access tokens due to use of regular string comparison for validation of the token rather than a constant time algorithm. This could allow a brute force attack on GoCD server API calls to observe timing differences in validations in order to guess an access token generated by a user for API access. This issue is fixed in GoCD version 19.11.0. As a workaround, users can apply rate limiting or insert random delays to API calls made to GoCD Server via a reverse proxy or other fronting web server. Another workaround, users may disallow use of access tokens by users by having an administrator revoke all access tokens through the "Access Token Management" admin function.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:56 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
  • CWE-1254 - Incorrect Comparison Logic Granularity
Impacted products
Vendor Product Version
gocd gocd Affected: >= 19.2.0, < 19.11.0
Create a notification for this product.
Show details on NVD website

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CVE-2022-31142 (GCVE-0-2022-31142)

Vulnerability from cvelistv5 – Published: 2022-07-14 18:55 – Updated: 2025-04-23 18:02
VLAI
Title
Potential Timing Attack Vector in @fastify/bearer-auth
Summary
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. A malicious attacker could estimate the length of one valid bearer token. According to the corresponding RFC 6750, the bearer token has only base64 valid characters, reducing the range of characters for a brute force attack. Version 7.0.2 and 8.0.1 of @fastify/bearer-auth contain a patch. There are currently no known workarounds. The package fastify-bearer-auth, which covers versions 6.0.3 and prior, is also vulnerable starting at version 5.0.1. Users of fastify-bearer-auth should upgrade to a patched version of @fastify/bearer-auth.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:53 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
Impacted products
Vendor Product Version
fastify fastify-bearer-auth Affected: >= 5.0.1, < 7.0.2
Affected: = 8.0.0
Create a notification for this product.
Show details on NVD website

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CVE-2022-29185 (GCVE-0-2022-29185)

Vulnerability from cvelistv5 – Published: 2022-05-20 19:30 – Updated: 2025-04-23 18:24
VLAI
Title
Observable Timing Discrepancy in totp-rs
Summary
totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 14:07 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
  • CWE-203 - Observable Discrepancy
Impacted products
Vendor Product Version
constantoine totp-rs Affected: <1.1.0
Create a notification for this product.
Show details on NVD website

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CVE-2022-25332 (GCVE-0-2022-25332)

Vulnerability from cvelistv5 – Published: 2023-10-19 09:36 – Updated: 2025-02-27 20:40
VLAI
Title
SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138
Summary
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SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:49 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
References
URL Tags
https://tetraburst.com/ related
Impacted products
Show details on NVD website

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CVE-2022-20752 (GCVE-0-2022-20752)

Vulnerability from cvelistv5 – Published: 2022-07-06 20:30 – Updated: 2024-11-01 19:00
VLAI
Title
Cisco Unified Communications Products Timing Attack Vulnerability
Summary
A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an unauthenticated, remote attacker to perform a timing attack. This vulnerability is due to insufficient protection of a system password. An attacker could exploit this vulnerability by observing the time it takes the system to respond to various queries. A successful exploit could allow the attacker to determine a sensitive system password.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-01 18:43 UTC
CWE
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2022-07-06 00:00
Show details on NVD website

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CVE-2022-4823 (GCVE-0-2022-4823)

Vulnerability from cvelistv5 – Published: 2022-12-28 20:51 – Updated: 2024-11-19 19:44
VLAI
Title
InSTEDD Nuntium geopoll_controller.rb timing discrepancy
Summary
A vulnerability, which was classified as problematic, was found in InSTEDD Nuntium. Affected is an unknown function of the file app/controllers/geopoll_controller.rb. The manipulation of the argument signature leads to observable timing discrepancy. It is possible to launch the attack remotely. The name of the patch is 77236f7fd71a0e2eefeea07f9866b069d612cf0d. It is recommended to apply a patch to fix this issue. VDB-217002 is the identifier assigned to this vulnerability.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-29 21:01 UTC
CWE
  • CWE-208 - Observable Timing Discrepancy
References
URL Tags
https://vuldb.com/?id.217002 vdb-entrytechnical-description
https://vuldb.com/?ctiid.217002 signaturepermissions-required
https://github.com/instedd/nuntium/commit/77236f7… patch
Impacted products
Vendor Product Version
InSTEDD Nuntium Affected: n/a
Create a notification for this product.
Show details on NVD website

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CVE-2021-43298 (GCVE-0-2021-43298)

Vulnerability from cvelistv5 – Published: 2022-01-25 19:11 – Updated: 2024-08-04 03:55
VLAI
Summary
The code that performs password matching when using 'Basic' HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webserver's response time until the unauthorized (401) response.
Severity
No CVSS data available.
CWE
References
Impacted products
Vendor Product Version
embedthis goahead Affected: unspecified , < 5.1.4 (custom)
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

CAPEC-462: Cross-Domain Search Timing

An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.

CAPEC-541: Application Fingerprinting

An adversary engages in fingerprinting activities to determine the type or version of an application installed on a remote target.

CAPEC-580: System Footprinting

An adversary engages in active probing and exploration activities to determine security information about a remote target system. Often times adversaries will rely on remote applications that can be probed for system configurations.