OSV-2018-71 Heap-use-after-free in parse_odp_action
A heap-use-after-free vulnerability in the Open vSwitch library allows attackers to execute arbitrary code or cause a denial of service via crafted ODP actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2018-71?
OSV-2018-71 is an use after free vulnerability in openvswitch, published on 13 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10796
Crash type: Heap-use-after-free READ 2
Crash state:
parse_odp_action
odp_actions_from_string
parse_actions
Which versions are affected by OSV-2018-71?
1 open source package ship an affected version, including openvswitch.
| Package | Affected | Fixed in |
|---|---|---|
openvswitch OSS-Fuzz | All versions | None |
How do I fix OSV-2018-71?
No fix has been published for OSV-2018-71 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2018-71 being exploited?
There is no known exploitation of OSV-2018-71 in the wild and no public exploit code.