CVE-2019-20422
Medium
Description
In the Linux kernel before 5.3.4, fib6_rule_lookup in net/ipv6/ip6_fib.c mishandles the RT6_LOOKUP_F_DST_NOREF flag in a reference-count decision, leading to (for example) a crash that was identified by syzkaller, aka CID-7b09c2d052db.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJan 27, 2020
First seenJan 27, 2020
How to fix
Update
- linux linux_kernel5.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.3.4 | 5.3.4 |
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