CVE-2019-1543

ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value IV should be 96 bits 12 bytes. OpenSSL allows a variable nonce length and front pads the nonce with 0 bytes if it is less than 12 bytes. However it also...

FreeBSD : OpenSSL -- ChaCha20-Poly1305 nonce vulnerability (e56f2f7c-410e-11e9-b95c-b499baebfeaf)

The OpenSSL project reports : Low: ChaCha20-Poly1305 with long nonces CVE-2019-1543 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value IV should be 96 bits 12 bytes. OpenSSL allows a variable nonce length...

Internet Bug Bounty: ChaCha20-Poly1305 with long nonces

This report relates to CVE-2019-1543, https://www.openssl.org/news/secadv/20190306.txt, which I reported to the OpenSSL maintainers a few days ago. OpenSSL accepts nonces for the AEAD cipher ChaCha20-Poly1305 of up to 16-bytes. This support is advertised in the OpenSSL documentation and via the...

CVE-2019-1543

ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value IV should be 96 bits 12 bytes. OpenSSL allows a variable nonce length and front pads the nonce with 0 bytes if it is less than 12 bytes. However it also...

CVE-2019-1543

ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value IV should be 96 bits 12 bytes. OpenSSL allows a variable nonce length and front pads the nonce with 0 bytes if it is less than 12 bytes. However it also...

CVE-2019-1543

CVE-2019-1543 describes a nonce handling flaw in ChaCha20-Poly1305 within OpenSSL: accepting non-default nonce lengths up to 16 bytes with only the last 12 bytes considered, risking nonce reuse if an application sets a longer nonce and changes leading bytes. OpenSSL 1.1.1 and 1.1.0 are affected. ...

OpenSSL -- ChaCha20-Poly1305 nonce vulnerability

The OpenSSL project reports: Low: ChaCha20-Poly1305 with long nonces CVE-2019-1543 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation. RFC 7539 specifies that the nonce value IV should be 96 bits 12 bytes. OpenSSL allows a variable nonce length a...

Vulnerability in OpenSSL - 0-byte record padding oracle

If an application encounters a fatal protocol error and then calls SSLshutdown twice once to send a closenotify, and once to receive one then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received...

Fedora 28 : python-cryptography / python-cryptography-vectors (2018-a9fe5e183e)

New upstream release 2.3 Fixes possible tag truncation security bug in AEAD API, see RHBZ1602752 2.3 - 2018-07-18 - SECURITY ISSUE: finalizewithtag allowed tag truncation by default which can allow tag forgery in some cases. The method now enforces the mintaglength provided to the GCM constructor...

kernel: Mishandled freeing of instances in pcrypt.c can allow a local user to cause a denial of service

crypto/pcrypt.c in the Linux kernel, before 4.14.13, mishandles freeing instances, allowing a local user able to access the AFALG-based AEAD interface CONFIGCRYPTOUSERAPIAEAD and pcrypt CONFIGCRYPTOPCRYPT to cause a denial of service kfree of an incorrect pointer or possibly have unspecified othe...

Fedora 27 : python-cryptography / python-cryptography-vectors (2018-06c24068c6)

New upstream release 2.3 Fixes possible tag truncation security bug in AEAD API, see RHBZ1602752 2.3 - 2018-07-18 - SECURITY ISSUE: finalizewithtag allowed tag truncation by default which can allow tag forgery in some cases. The method now enforces the mintaglength provided to the GCM constructor...

CVE-2017-18075

crypto/pcrypt.c in the Linux kernel, before 4.14.13, mishandles freeing instances, allowing a local user able to access the AFALG-based AEAD interface CONFIGCRYPTOUSERAPIAEAD and pcrypt CONFIGCRYPTOPCRYPT to cause a denial of service kfree of an incorrect pointer or possibly have unspecified othe...

Linux kernel denial of service vulnerability (CNVD-2018-03167)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the crypto/pcrypt.c file in versions of Linux kernel prior to 4.14.13, which stems from the program's failure to properly handle the...

CVE-2017-18075

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AFALG-based AEAD interface CONFIGCRYPTOUSERAPIAEAD and pcrypt CONFIGCRYPTOPCRYPT to cause a denial of service kfree of an incorrect pointer or possibly have unspecified other...

CVE-2017-18075

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AFALG-based AEAD interface CONFIGCRYPTOUSERAPIAEAD and pcrypt CONFIGCRYPTOPCRYPT to cause a denial of service kfree of an incorrect pointer or possibly have unspecified other...

UBUNTU-CVE-2017-18075

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AFALG-based AEAD interface CONFIGCRYPTOUSERAPIAEAD and pcrypt CONFIGCRYPTOPCRYPT to cause a denial of service kfree of an incorrect pointer or possibly have unspecified other...

[ASA-201705-16] openvpn: denial of service

Arch Linux Security Advisory ASA-201705-16 ========================================== Severity: High Date : 2017-05-13 CVE-ID : CVE-2017-7478 CVE-2017-7479 Package : openvpn Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-271 Summary ======= The package openvpn...

RUSTSEC-2016-0005 rust-crypto is unmaintained; switch to a modern alternative

The rust-crypto crate has not seen a release or GitHub commit since 2016, and its author is unresponsive. NOTE: The old rust-crypto crate with hyphen should not be confused with similarly named new RustCrypto GitHub Org without hyphen. The GitHub Org is actively maintained. We recommend you switc...

CVE-2015-3331

The driverrfc4106decrypt function in arch/x86/crypto/aesni-intelglue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service buffer overflow and system crash or possibly...

CVE-2015-3331

CVE-2015-3331 affects the Linux kernel up to 3.19.2, where __driver_rfc4106_decrypt in arch/x86/crypto/aesni-intel_glue.c mishandles memory locations for encrypted data, enabling a context-dependent attacker to trigger a buffer overflow via a crypto API call (e.g., with a libkcapi test program us...