
CVE-2020-11884 – Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation
https://notcve.org/view.php?id=CVE-2020-11884
28 Apr 2020 — In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur. En el kernel de Linux versión 4.9 hasta la versión 5.6.7, en la plataforma s390, una ejecución de código puede presentarse debido a una condición de carrera, como es demostrado por el código en la función enable_... • https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=215d1f3928713d6eaec67244bcda72105b898000 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-1251: Mirrored Regions with Different Values •

CVE-2019-17498 – libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c
https://notcve.org/view.php?id=CVE-2019-17498
21 Oct 2019 — In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. En libssh2 versión v1.9.0 y anteriores, la lógica de la función SSH_MSG_DISCONNECT en el archivo packet.c presenta un desbordam... • https://packetstorm.news/files/id/172835 • CWE-190: Integer Overflow or Wraparound CWE-400: Uncontrolled Resource Consumption •

CVE-2019-0201 – zookeeper: Information disclosure in Apache ZooKeeper
https://notcve.org/view.php?id=CVE-2019-0201
23 May 2019 — An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthentica... • http://www.securityfocus.com/bid/108427 • CWE-732: Incorrect Permission Assignment for Critical Resource CWE-862: Missing Authorization •