CVE-2023-6681

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

Impact

Denial of Service, Applications that allow the use of the PBKDF2 algorithm.

Patches

A patch is available that sets the maximum number of default rounds.

Workarounds

Applications that do not need to use PBKDF2 should simply specify the algorithms use and exclude it from the list. Applications that need to use the algorithm should upgrade to the new version that allows to set a maximum rounds number.

Acknowledgement

The issues was reported by Jingcheng Yang and Jianjun Chen from Sichuan University and Zhongguancun Lab

Implements JWK, JWS, JWE specifications with python-cryptography

Security Fix(es):

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.(CVE-2023-6681)

Implements JWK, JWS, JWE specifications with python-cryptography

Security Fix(es):

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.(CVE-2023-6681)

Implements JWK, JWS, JWE specifications with python-cryptography

Security Fix(es):

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.(CVE-2023-6681)

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

The python-jwcrypto package provides Python implementations of the JSON Web Key (JWK), JSON Web Signature (JWS), JSON Web Encryption (JWE), and JSON Web Token (JWT) JOSE (JSON Object Signing and Encryption) standards.

Security Fix(es):

• JWCrypto: denail of service Via specifically crafted JWE (CVE-2023-6681)

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 Rocky Linux 9.5 Release Notes linked from the References section.

A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.

The python-jwcrypto package provides Python implementations of the JSON Web Key (JWK), JSON Web Signature (JWS), JSON Web Encryption (JWE), and JSON Web Token (JWT) JOSE (JSON Object Signing and Encryption) standards.

Security Fix(es):

• JWCrypto: denail of service Via specifically crafted JWE (CVE-2023-6681)

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 AlmaLinux Release Notes linked from the References section.

Rocky Enterprise Software Foundation Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments.

Security Fix(es):

• JWCrypto: denail of service Via specifically crafted JWE (CVE-2023-6681)

• python-jwcrypto: malicious JWE token can cause denial of service (CVE-2024-28102)

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.

Root has patched CVE-2023-6681 in the rootio-jwcrypto package for Root:PyPI. Multiple fixed versions available.