CVE-2020-13949 Uncontrolled Resource Consumption in Apache Thrift
Malicious RPC clients can cause large memory allocations leading to denial of service in Apache Thrift.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-13949?
CVE-2020-13949 is a high-severity denial of service vulnerability in Oracle Communications Cloud Native Core Policy, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Apache Thrift 0.9.3 to 0.13.0, malicious RPC clients could send short messages which would result in a large memory allocation, potentially leading to denial of service.
Weakness: CWE-400
Which versions are affected by CVE-2020-13949?
3 open source packages ship an affected version, including org.apache.thrift:libthrift and thrift. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.thrift:libthrift Maven | From 0.9.3 | 0.14.0 |
org.apache.thrift:libthrift Maven | From 0.9.3 | 0.14.0 |
thrift Bitnami | From 0.9.3 to 0.13.0 | None |
Linux distribution packages (1)
thrift openSUSE:Tumbleweed | All versions | 0.14.1-1.6 |
Products include Apache Hive, Apache Thrift, Oracle Communications Cloud Native Core Network Slice Selection Function, Oracle Communications Cloud Native Core Policy.
How do I fix CVE-2020-13949?
Upgrade org.apache.thrift:libthrift to 0.14.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-13949 being exploited?
There is no known exploitation of CVE-2020-13949 in the wild and no public exploit code.
Other vulnerabilities in Oracle Communications Cloud Native Core Policy
- CVE-2026-49845 Apache Hive: SQL Injection vulnerability in HiveMetaStore partition-name direct-SQL paths
- CVE-2018-21234 Deserialization of Untrusted Data in Jodd
- CVE-2026-55976 Apache Hive: SSRF vulnerability in Hive Avro Serde due to Insufficient input validation on avro.schema.url
- CVE-2018-1282 SQL Injection in hive-jdbc
- CVE-2022-41137 Apache Hive: Deserialization of untrusted data when fetching partitions from the Metastore
All Oracle Communications Cloud Native Core Policy vulnerabilities
Sources
Also known as BIT-thrift-2020-13949, CLEANSTART-2026-RX25743, CLEANSTART-2026-TJ89244, CLSA-2025-1750809966, DEBIAN-CVE-2020-13949, ECHO-fb93-a162-238f and 7 more.