CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0CVE-2023-2975 – AES-SIV implementation ignores empty associated data entries
https://notcve.org/view.php?id=CVE-2023-2975
Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequence. Impact summary: Applications that use the AES-SIV algorithm and want to authenticate empty data entries as associated data can be mislead by removing adding or reordering such empty entries as these are ignored by the OpenSSL implementation. We are currently unaware of any such applications. The AES-SIV algorithm allows for authentication of multiple associated data entries along with the encryption. To authenticate empty data the application has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with NULL pointer as the output buffer and 0 as the input buffer length. The AES-SIV implementation in OpenSSL just returns success for such a call instead of performing the associated data authentication operation. The empty data thus will not be authenticated. As this issue does not affect non-empty associated data authentication and we expect it to be rare for an application to use empty associated data entries this is qualified as Low severity issue. Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequence. Impact summary: Applications that use the AES-SIV algorithm and want to authenticate empty data entries as associated data can be misled by removing, adding or reordering such empty entries as these are ignored by the OpenSSL implementation. We are currently unaware of any such applications. The AES-SIV algorithm allows for authentication of multiple associated data entries along with the encryption. • http://www.openwall.com/lists/oss-security/2023/07/15/1 http://www.openwall.com/lists/oss-security/2023/07/19/5 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=00e2f5eea29994d19293ec4e8c8775ba73678598 https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a83f0c958811f07e0d11dfc6b5a6a98edfd5bdc https://security.gentoo.org/glsa/202402-08 https://security.netapp.com/advisory/ntap-20230725-0004 https://www.openssl.org/news/secadv/20230714.txt https://access.redhat.com/securi • CWE-287: Improper Authentication CWE-354: Improper Validation of Integrity Check Value •
CVSS: 7.5EPSS: 0%CPEs: 13EXPL: 4CVE-2023-24329 – python: urllib.parse url blocklisting bypass
https://notcve.org/view.php?id=CVE-2023-24329
An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters. A flaw was found in the Python package. An issue in the urllib.parse component could allow attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.This may lead to compromised Integrity. • https://github.com/JawadPy/CVE-2023-24329-Exploit https://github.com/Pandante-Central/CVE-2023-24329-codeql-test https://github.com/H4R335HR/CVE-2023-24329-PoC https://github.com/python/cpython/issues/102153 https://github.com/python/cpython/pull/99421 https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PEVICI7YNGGMSL3UCMWGE66QFLATH72 https://lists.fedoraproject.org/archives/list/package-announ • CWE-20: Improper Input Validation •
CVSS: 7.4EPSS: 0%CPEs: 10EXPL: 1CVE-2023-0361 – gnutls: timing side-channel in the TLS RSA key exchange code
https://notcve.org/view.php?id=CVE-2023-0361
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. A timing side-channel vulnerability was found in RSA ClientKeyExchange messages in GnuTLS. • https://access.redhat.com/security/cve/CVE-2023-0361 https://github.com/tlsfuzzer/tlsfuzzer/pull/679 https://gitlab.com/gnutls/gnutls/-/issues/1050 https://lists.debian.org/debian-lts-announce/2023/02/msg00015.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UFIA3X4IZ3CW7SRQ2UHNHNPMRIAWF2FI https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS4KVDOG6QTALWHC2QE4Y7VPDRMLTRWQ https://lists.fedoraproject.org/archives/list/package& • CWE-203: Observable Discrepancy •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 11CVE-2023-25136 – openssh: the functions order_hostkeyalgs() and list_hostkey_types() leads to double-free vulnerability
https://notcve.org/view.php?id=CVE-2023-25136
OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible." OpenSSH server (sshd) v9.1 introdujo una vulnerabilidad de doble liberación durante el manejo de "options.key_algorithms". • https://github.com/Christbowel/CVE-2023-25136 https://github.com/nhakobyan685/CVE-2023-25136 https://github.com/adhikara13/CVE-2023-25136 https://github.com/jfrog/jfrog-CVE-2023-25136-OpenSSH_Double-Free https://github.com/H4K6/CVE-2023-25136 https://github.com/ticofookfook/CVE-2023-25136 https://github.com/malvika-thakur/CVE-2023-25136 https://github.com/Business1sg00d/CVE-2023-25136 http://www.openwall.com/lists/oss-security/2023/02/13/1 http://www.openwall.com/lists • CWE-401: Missing Release of Memory after Effective Lifetime CWE-415: Double Free •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 1CVE-2022-4292 – Use After Free in vim/vim
https://notcve.org/view.php?id=CVE-2022-4292
Use After Free in GitHub repository vim/vim prior to 9.0.0882. Use After Free en el repositorio de GitHub vim/vim anterior a 9.0.0882. • https://github.com/vim/vim/commit/c3d27ada14acd02db357f2d16347acc22cb17e93 https://huntr.dev/bounties/da3d4c47-e57a-451e-993d-9df0ed31f57b https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYC22GGZ6QA66HLNLHCTAJU265TT3O33 https://security.gentoo.org/glsa/202305-16 https://security.netapp.com/advisory/ntap-20230113-0005 • CWE-416: Use After Free •