CVE-2021-29482

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
xz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.
Overview
  • CVE ID
  • CVE-2021-29482
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-28T19:15:08
  • Last Modified Date
  • 2021-05-14T19:56:32
Weakness Enumerations
CWE URL
CWE-835 http://cwe.mitre.org/data/definitions/835.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:xz_project:xz:*:*:*:*:*:go:*:* 1 OR 0.5.8
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27 Third Party Advisory
https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-29482
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29482
History
Created Old Value New Value Data Type Notes
2022-05-10 16:16:02 Added to TrackCVE
2022-12-05 01:12:17 2021-04-28T19:15Z 2021-04-28T19:15:08 CVE Published Date updated
2022-12-05 01:12:17 2021-05-14T19:56:32 CVE Modified Date updated
2022-12-05 01:12:17 Analyzed Vulnerability Status updated