CVE-2014-9934 - Improper Verification of Cryptographic Signature

Severity

93%

Complexity

86%

Confidentiality

165%

A PKCS#1 v1.5 signature verification routine in all Android releases from CAF using the Linux kernel may not check padding.

A PKCS#1 v1.5 signature verification routine in all Android releases from CAF using the Linux kernel may not check padding.

CVSS 3.0 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 9.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C).

Demo Examples

Improper Verification of Cryptographic Signature

CWE-347

In the following code, a JarFile object is created from a downloaded file.


               
JarFile jf = new JarFile(f);

The JAR file that was potentially downloaded from an untrusted source is created without verifying the signature (if present). An alternate constructor that accepts a boolean verify parameter should be used instead.

Overview

First reported 7 years ago

2017-05-16 14:29:00

Last updated 7 years ago

2017-07-11 01:33:00

Affected Software

Google Android Operating System

References

97329

Third Party Advisory, VDB Entry

1038201

https://source.android.com/security/bulletin/2017-04-01

Patch, Vendor Advisory

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