CVE-2021-21343
Severity
7.5HIGH
EPSS
0.6%
top 29.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 23
Latest updateAug 22
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in the deletion of a file on the local host. No user is affected, who followed the r…
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 1.6 | Impact: 3.6
Affected Packages15 packages
Also affects: Debian Linux 10.0, 11.0, 9.0, Fedora 33, 34, 35
Patches
🔴Vulnerability Details
4GHSA▶
XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling as long as the executing process has sufficient rights↗2021-03-22
CVEList▶
XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling as long as the executing process has sufficient rights↗2021-03-22
OSV▶
XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling as long as the executing process has sufficient rights↗2021-03-22
📋Vendor Advisories
4Debian▶
CVE-2021-21343: libxstream-java - XStream is a Java library to serialize objects to XML and back again. In XStream...↗2021