Apache Ant TAR archive denial of service vulnerability

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Summary

CVECVE-2021-36373
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-14 07:15:08 UTC
Updated2026-08-25 16:28:27 UTC
DescriptionWhen reading a specially crafted TAR archive an Apache Ant build can be made to allocate large amounts of memory that finally leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Apache Ant prior to 1.9.16 and 1.10.11 were affected.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem Types: CWE-130 | NVD-CWE-Other | CWE-130 CWE-130 Improper Handling of Length Parameter Inconsistency

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Ant All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Ant affected Apache Ant 1.9.x 1.9.15 custom Not specified
CNA Apache Software Foundation Apache Ant affected Apache Ant 1.10.x 1.10.10 custom Not specified
CNA Apache Software Foundation Apache Ant unaffected Apache Ant 1.9.0 custom Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread.html/rf4bb79751a02889623195715925e4fd8932dd3c97e0ade91... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
lists.apache.org/thread.html/r54afdab05e01de970649c2d91a993f68a6b00cd73e6e34e1... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org Mailing List, Vendor Advisory
Oracle Critical Patch Update Advisory - October 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
lists.apache.org/thread.html/rad36f470647c5a7c02dd78c9973356d2840766d132b597b6... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Oracle Critical Patch Update Advisory - January 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - July 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Not Applicable
July 2021 Apache Ant Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
lists.apache.org/thread.html/r27919fd4db07c487239c1d9771f480d89ce5ee2750aa9447... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Apache Ant - Apache Ant Security Reports af854a3a-2127-422b-91ae-364da2661108 ant.apache.org Patch, Vendor Advisory
lists.apache.org/thread.html/r544c9e8487431768465b8b2d13982c75123109bd816acf83... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: This issue is similar to https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35517 present in Apache Commons Compress which has been detected by OSS Fuzz. (en)

Additional Advisory Data

Workarounds

CNA: Apache Ant 1.9.x users should upgrade to 1.9.16 or later. Apache Ant 1.10.x users should upgrade to 1.10.11 or later.

Legacy QID Mappings

  • 183912 Debian Security Update for ant (CVE-2021-36373)
  • 296065 Oracle Solaris 11.4 Support Repository Update (SRU) 39.107.1 Missing (CPUOCT2021)
  • 376123 IBM Installation Manager Multiple Vulnerabilities
  • 501805 Alpine Linux Security Update for apache-ant
  • 504580 Alpine Linux Security Update for apache-ant
  • 670695 EulerOS Security Update for ant (EulerOS-SA-2021-2453)
  • 670958 EulerOS Security Update for ant (EulerOS-SA-2021-2651)
  • 671660 EulerOS Security Update for ant (EulerOS-SA-2022-1703)
  • 752076 SUSE Enterprise Linux Security Update for ant (SUSE-SU-2022:1417-1)
  • 753206 SUSE Enterprise Linux Security Update for ant (SUSE-SU-2022:1418-1)
  • 900240 CBL-Mariner Linux Security Update for ant 1.10.9
  • 903364 Common Base Linux Mariner (CBL-Mariner) Security Update for ant (4437)
  • 980363 Java (maven) Security Update for org.apache.ant:ant (GHSA-q5r4-cfpx-h6fh)

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