OSV-2020-248 Heap-use-after-free in LocalizedText_clear
A heap-use-after-free vulnerability in the LocalizedText_clear function of an OPC UA library could allow attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is OSV-2020-248?
OSV-2020-248 is an use after free vulnerability in open62541, published on 26 Jun 2020.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20061
Crash type: Heap-use-after-free READ 8
Crash state:
LocalizedText_clear
Variant_clear
UA_clear
Which versions are affected by OSV-2020-248?
1 open source package ship an affected version, including open62541.
| Package | Affected | Fixed in |
|---|---|---|
open62541 OSS-Fuzz | All versions | None |
How do I fix OSV-2020-248?
No fix has been published for OSV-2020-248 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-2020-248 being exploited?
There is no known exploitation of OSV-2020-248 in the wild and no public exploit code.