OSV-2020-3 UNKNOWN WRITE in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<ch

Not scored Published

A memory corruption vulnerability in the pcpp library's DNS resource handling can lead to application crashes.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not stated
Fix
None listed

What is OSV-2020-3?

OSV-2020-3 is a memory corruption vulnerability in pcapplusplus, published on 24 Jun 2020.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22962

Crash type: UNKNOWN WRITE
Crash state:
std::__1::basic_string&lt;char, std::__1::char_traits&lt;char&gt;, std::__1::allocator&lt;ch
std::__1::basic_string&lt;char, std::__1::char_traits&lt;char&gt;, std::__1::allocator&lt;ch
pcpp::IDnsResource::IDnsResource

Which versions are affected by OSV-2020-3?

1 open source package ship an affected version, including pcapplusplus.

PackageAffectedFixed in
pcapplusplus OSS-FuzzAll versionsNone

How do I fix OSV-2020-3?

No fix has been published for OSV-2020-3 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is OSV-2020-3 being exploited?

There is no known exploitation of OSV-2020-3 in the wild and no public exploit code.

Sources

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