CVE-2022-41966
Versions prior to 1.4.20 may allow a remote attacker to terminate the application with a stack overflow error, resulting in a denial of service only via manipulation the processed input stream.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
XStream serializes Java objects to XML and back again. Versions prior to 1.4.20 may allow a remote attacker to terminate the application with a stack overflow error, resulting in a denial of service only via manipulation the processed input stream. The attack uses the hash code implementation for collections and maps to force recursive hash calculation causing a stack overflow. This issue is patched in version 1.4.20 which handles the stack overflow and raises an InputManipulationException instead. A potential workaround for users who only use HashMap or HashSet and whose XML refers these only as default map or set, is to change the default implementation of java.util.Map and java.util per the code example in the referenced advisory. However, this implies that your application does not care about the implementation of the map and all elements are comparable.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 8.76% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-121, CWE-502, CWE-674
- Affected
- xstream/xstream
- Source
- security-advisories@github.com
References
- https://github.com/x-stream/xstream/security/advisories/GHSA-j563-grx4-pjpvMitigation, Third Party Advisory
- https://x-stream.github.io/CVE-2022-41966.htmlExploit, Vendor Advisory
- https://github.com/x-stream/xstream/security/advisories/GHSA-j563-grx4-pjpvMitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0005/Third Party Advisory
- https://x-stream.github.io/CVE-2022-41966.htmlExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.