CVE-2019-11467 Memory corruption in n/a
A buffer overrun in Couchbase Server's secondary indexing allows attackers to crash the indexer service via crafted index entries.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11467?
CVE-2019-11467 is a high-severity memory corruption vulnerability in Couchbase Couchbase Server, published on 10 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Couchbase Server 4.6.3 and 5.5.0, secondary indexing encodes the entries to be indexed using collatejson. When index entries contain certain characters like \t, <, >, it caused buffer overrun as encoded string would be much larger than accounted for, causing indexer service to crash and restart. This has been remedied in versions 5.1.2 and 5.5.2 to ensure buffer always grows as needed for any input.
Weakness: CWE-119
Which versions are affected by CVE-2019-11467?
It affects 1 product.
Products include Couchbase Couchbase Server.
How do I fix CVE-2019-11467?
No fix has been published for CVE-2019-11467 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 CVE-2019-11467 being exploited?
There is no known exploitation of CVE-2019-11467 in the wild and no public exploit code.
Other vulnerabilities in Couchbase Couchbase Server
Sources
Also known as GHSA-mrc2-3r75-vvg6.