9.8

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2016-1585

CVE-2016-1585: In all versions of AppArmor mount rules are accidentally widened when compiled.

In all versions of AppArmor mount rules are accidentally widened when compiled.

(GitHub Advisory)

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CVE-2016-1585

CVE-2016-1585:

9.8

CVSS Score

3.0

-

CVSS Score

Basic Information

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Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability CVE-2016-1585 concerns the AppArmor parser incorrectly widening mount rules during compilation, granting excessive permissions. The analysis focused on the patch descriptions provided in the Launchpad bug report #1597017, as direct commit information fetching was not successful. These descriptions point to specific C++ functions within the 'parser' directory of AppArmor, particularly in 'mount.cc', 'parser.h', 'af_unix.cc', and 'parser_regex.c'. The identified functions are directly involved in parsing, encoding, generating flags, and handling variables for mount rules. The patches modify these functions to ensure stricter and more accurate rule compilation, thereby fixing the vulnerability. The functions 'gen_flag_rules' and 'gen_policy_change_mount_type' are central to mount rule processing and were explicitly updated. 'filter_slashes' and 'expand_entry_variables' were also modified or their usage changed in the context of mount rules, indicating their role in the vulnerability.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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