The ASN1_TFLG_COMBINE implementation in crypto/asn1/tasn_dec.c in OpenSSL before 0.9.8zh, 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1q, and 1.0.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• apple mac os xbefore 10.11.4
• canonical ubuntu linux12.04
• canonical ubuntu linux14.04
• canonical ubuntu linux15.04
• canonical ubuntu linux15.10
• debian debian linux7.0
• debian debian linux8.0
• fedoraproject fedora22
• openssl opensslbefore 0.9.8zh
• openssl openssl1.0.2 and later · before 1.0.2e
• openssl openssl1.0.1 and later · before 1.0.1q
• openssl openssl1.0.0 and later · before 1.0.0t
• opensuse leap42.1
• opensuse opensuse11.4
• opensuse opensuse13.1
• opensuse opensuse13.2
• oracle api gateway11.1.2.3.0
• oracle api gateway11.1.2.4.0
• oracle communications webrtc session controller7.0
• oracle communications webrtc session controller7.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2014-0160The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remKEV
  90Now
• CVE-2021-3711SM2 Decryption Buffer Overflow
  65This week
• CVE-2003-0545Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code
  65This week
• CVE-2016-2108The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to execute arbitrary code or cause a denia
  62This week
• CVE-2016-6309statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a den
  60This week
• CVE-2022-3786X.509 Email Address Variable Length Buffer Overflow
  58Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.