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CVE-2019-18198

Good to know:

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Date: October 18, 2019

In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.

Language: C

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2019-18198
https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26
https://security.netapp.com/advisory/ntap-20191031-0005/
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26
https://launchpad.net/bugs/1847478
https://usn.ubuntu.com/4161-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-18198
https://access.redhat.com/security/cve/CVE-2019-18198
https://www.mend.io/vulnerability-database/CVE-2019-18198

Severity Score

Weakness Type (CWE)

Missing Release of Resource after Effective Lifetime

CWE-772

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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