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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Oct 18, 2019 |
| Suse | — | Upgrade kernel-default | Feb 4, 2022 | Oct 18, 2019 |
| Ubuntu | — | Upgrade linux-image-5.3.0-1005-gcpUpgrade linux-image-virtualUpgrade linux-image-5.3.0-19-snapdragonUpgrade linux-image-5.3.0-1004-azureUpgrade linux-image-5.3.0-19-genericUpgrade linux-image-5.3.0-1004-awsUpgrade linux-image-5.3.0-1008-raspi2Upgrade linux-image-snapdragonUpgrade linux-image-genericUpgrade linux-image-gkeUpgrade linux-image-5.3.0-19-lowlatencyUpgrade linux-image-5.3.0-19-generic-lpaeUpgrade linux-image-gcpUpgrade linux-image-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-awsUpgrade linux-image-azureUpgrade linux-image-5.3.0-1004-kvmUpgrade linux-image-raspi2Upgrade linux-image-kvm | Oct 22, 2019 | Oct 18, 2019 |
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