USN-5194-1: Olm vulnerability

Denis Kasak discovered that Olm was not verifying the length of input being processed by the olmpkdecrypt module, which introduced a stack-based buffer overflow vulnerability to the library. An attacker could use this to cause a denial of service application crash or possibly execute arbitrary co...

CVE-2021-44538

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

CVE-2021-44538

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

CVE-2021-44538

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

Buffer overflow

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

CVE-2021-44538

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

CVE-2021-44538

The olmsessiondescribe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted...

Matrix libolm 缓冲区错误漏洞

Matrix libolm is a cryptographic library. A security vulnerability in the olmsessiondescribe function in Matrix libolm before 3.2.7 allows an attacker to construct a carefully crafted sequence of messages to manipulate the state of the recipient's session, and for certain buffer sizes, a buffer...

CVE-2021-34813

Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client while it is attempting to retrieve an Olm encrypted room key backup from the homeserver because olmpkdecrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build...

CVE-2021-34813

Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client while it is attempting to retrieve an Olm encrypted room key backup from the homeserver because olmpkdecrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build...

UBUNTU-CVE-2021-34813

Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client while it is attempting to retrieve an Olm encrypted room key backup from the homeserver because olmpkdecrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build...

CVE-2021-34813

Matrix libolm before 3.2.3 is affected. The flaw is in olm_pk_decrypt, causing a stack-based buffer overflow that can crash the client when retrieving an Olm-encrypted room key backup from a Matrix homeserver; remote code execution might be possible in some nonstandard builds. A fix is available ...