CWE-776
AllowedImproper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Abstraction: Base · Status: Draft
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.
165 vulnerabilities reference this CWE, most recent first.
GHSA-FGQ9-FC3Q-VQMW
Vulnerability from github – Published: 2023-10-25 18:32 – Updated: 2023-10-31 20:21Withdrawn Advisory
This advisory has been withdrawn because the underlying vulnerability could not be reproduced. This link is maintained to preserve external references.
Original Description
An issue in dom4.j org.dom4.io.SAXReader v.2.1.4 and before allows a remote attacker to obtain sensitive information via the setFeature function.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.dom4j:dom4j"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.1.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-45960"
],
"database_specific": {
"cwe_ids": [
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-27T19:50:41Z",
"nvd_published_at": "2023-10-25T18:17:35Z",
"severity": "MODERATE"
},
"details": "## Withdrawn Advisory\nThis advisory has been withdrawn because [the underlying vulnerability could not be reproduced](https://github.com/joker-xiaoyan/XXE-SAXReader/issues/1#issuecomment-1783780581). This link is maintained to preserve external references.\n\n## Original Description\nAn issue in dom4.j org.dom4.io.SAXReader v.2.1.4 and before allows a remote attacker to obtain sensitive information via the setFeature function.",
"id": "GHSA-fgq9-fc3q-vqmw",
"modified": "2023-10-31T20:21:23Z",
"published": "2023-10-25T18:32:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45960"
},
{
"type": "WEB",
"url": "https://github.com/dom4j/dom4j/issues/171#issuecomment-1781547256"
},
{
"type": "WEB",
"url": "https://github.com/joker-xiaoyan/XXE-SAXReader/issues/1"
},
{
"type": "WEB",
"url": "https://dom4j.github.io"
},
{
"type": "PACKAGE",
"url": "https://github.com/dom4j/dom4j"
},
{
"type": "WEB",
"url": "https://github.com/joker-xiaoyan/XXE-SAXReader/blob/8c0d24f9800c36c8ad36457c1df1e4aaff24c7b9/POC.java"
},
{
"type": "WEB",
"url": "https://github.com/joker-xiaoyan/XXE-SAXReader/tree/main"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Withdrawn Advisory: dom4j XML Entity Expansion vulnerability",
"withdrawn": "2023-10-31T20:21:23Z"
}
GHSA-FRQP-FR6C-CW58
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2024-04-04 03:06The XML Import functionality of the Administration console in Perforce Helix ALM 2020.3.1 Build 22 accepts XML input data that is parsed by insecurely configured software components, leading to XXE attacks.
{
"affected": [],
"aliases": [
"CVE-2021-28973"
],
"database_specific": {
"cwe_ids": [
"CWE-611",
"CWE-776"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-13T17:15:00Z",
"severity": "MODERATE"
},
"details": "The XML Import functionality of the Administration console in Perforce Helix ALM 2020.3.1 Build 22 accepts XML input data that is parsed by insecurely configured software components, leading to XXE attacks.",
"id": "GHSA-frqp-fr6c-cw58",
"modified": "2024-04-04T03:06:04Z",
"published": "2022-05-24T17:47:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28973"
},
{
"type": "WEB",
"url": "https://www.compass-security.com/fileadmin/Research/Advisories/2021-01_CSNC-2021-005_Helix_ALM_XXE.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-G2RW-3CC4-QQ38
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2022-05-24 17:08The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.
{
"affected": [],
"aliases": [
"CVE-2019-20104"
],
"database_specific": {
"cwe_ids": [
"CWE-776"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-06T03:15:00Z",
"severity": "MODERATE"
},
"details": "The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.",
"id": "GHSA-g2rw-3cc4-qq38",
"modified": "2022-05-24T17:08:08Z",
"published": "2022-05-24T17:08:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20104"
},
{
"type": "WEB",
"url": "https://jira.atlassian.com/browse/CWD-5526"
},
{
"type": "WEB",
"url": "https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-G43W-98WP-M694
Vulnerability from github – Published: 2024-05-23 14:49 – Updated: 2024-05-23 14:49A low level vulnerability has been found in the SilverStripe framework, where the Quadratic Blowup Attack could potentially be exploited to affect the performance of a site.
See http://mashable.com/2014/08/06/wordpress-xml-blowup-dos/ for a writeup.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 3.1.11"
},
"package": {
"ecosystem": "Packagist",
"name": "silverstripe/framework"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.12"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2024-05-23T14:49:39Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "A low level vulnerability has been found in the SilverStripe framework, where the Quadratic Blowup Attack could potentially be exploited to affect the performance of a site.\n\nSee http://mashable.com/2014/08/06/wordpress-xml-blowup-dos/ for a writeup.",
"id": "GHSA-g43w-98wp-m694",
"modified": "2024-05-23T14:49:39Z",
"published": "2024-05-23T14:49:39Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/silverstripe/silverstripe-framework/commit/7f983c2bae1dc78ca7217e9af364b2fb71dcefe8"
},
{
"type": "WEB",
"url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2014-017-1.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/silverstripe/silverstripe-framework"
},
{
"type": "WEB",
"url": "https://www.silverstripe.org/software/download/security-releases/ss-2014-017-xml-quadratic-blowup-attack"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "SilverStripe framework XML Quadratic Blowup Attack"
}
GHSA-G5MJ-C26G-VMPM
Vulnerability from github – Published: 2023-01-26 21:30 – Updated: 2023-02-03 20:36Jenkins TestComplete support Plugin 2.8.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.8.1"
},
"package": {
"ecosystem": "Maven",
"name": "org.jenkins-ci.plugins:TestComplete"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-24443"
],
"database_specific": {
"cwe_ids": [
"CWE-611",
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2023-01-27T01:00:03Z",
"nvd_published_at": "2023-01-26T21:18:00Z",
"severity": "CRITICAL"
},
"details": "Jenkins TestComplete support Plugin 2.8.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.",
"id": "GHSA-g5mj-c26g-vmpm",
"modified": "2023-02-03T20:36:33Z",
"published": "2023-01-26T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24443"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/testcomplete-plugin/commit/971003ea578a090ed9a5b9487acb9d2aa93645d3"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/testcomplete-plugin/commit/cfb0fc3cd807cb72c24424cef98ce39710f2e5fb"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2023-01-24/#SECURITY-2741"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "XML Entity Expansion in Jenkins TestComplete support Plugin"
}
GHSA-G8Q7-XV52-HF9F
Vulnerability from github – Published: 2020-01-28 22:37 – Updated: 2024-09-20 17:44Impact
The feedgen library allows supplying XML as content for some of the available fields. This XML will be parsed and integrated into the existing XML tree. During this process, feedgen is vulnerable to XML Denial of Service Attacks (e.g. XML Bomb).
This becomes a concern in particular if feedgen is used to include content from untrused sources and if XML (including XHTML) is directly included instead of providing plain tex content only.
Patches
This problem has been fixed in feedgen 0.9.0 which disallows XML entity expansion and external resources.
Workarounds
Updating is strongly recommended and should not be problematic. Nevertheless, as a workaround, avoid providing XML directly to feedgen or ensure that no entity expansion is part of the XML.
References
For more information
If you have any questions or comments about this advisory: - Open an issue in lkiesow/python-feedgen - Send an email to security@lkiesow.de
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "feedgen"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-5227"
],
"database_specific": {
"cwe_ids": [
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2020-01-28T22:34:51Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "### Impact\n\nThe *feedgen* library allows supplying XML as content for some of the available fields. This XML will be parsed and integrated into the existing XML tree. During this process, feedgen is vulnerable to [XML Denial of Service Attacks](https://docs.microsoft.com/en-us/archive/msdn-magazine/2009/november/xml-denial-of-service-attacks-and-defenses) (e.g. XML Bomb).\n\nThis becomes a concern in particular if feedgen is used to include content from untrused sources and if XML (including XHTML) is directly included instead of providing plain tex content only.\n\n### Patches\n\nThis problem has been fixed in feedgen 0.9.0 which disallows XML entity expansion and external resources.\n\n### Workarounds\n\nUpdating is strongly recommended and should not be problematic. Nevertheless, as a workaround, avoid providing XML directly to feedgen or ensure that no entity expansion is part of the XML. \n\n### References\n\n- [Security Briefs - XML Denial of Service Attacks and Defenses](https://docs.microsoft.com/en-us/archive/msdn-magazine/2009/november/xml-denial-of-service-attacks-and-defenses)\n- [Billion laughs attack](https://en.wikipedia.org/wiki/Billion_laughs_attack#cite_note-2)\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n- Open an issue in [lkiesow/python-feedgen](https://github.com/lkiesow/python-feedgen/issues)\n- Send an email to security@lkiesow.de",
"id": "GHSA-g8q7-xv52-hf9f",
"modified": "2024-09-20T17:44:21Z",
"published": "2020-01-28T22:37:50Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/lkiesow/python-feedgen/security/advisories/GHSA-g8q7-xv52-hf9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5227"
},
{
"type": "WEB",
"url": "https://github.com/lkiesow/python-feedgen/commit/f57a01b20fa4aaaeccfa417f28e66b4084b9d0cf"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/archive/msdn-magazine/2009/november/xml-denial-of-service-attacks-and-defenses"
},
{
"type": "PACKAGE",
"url": "https://github.com/lkiesow/python-feedgen"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/feedgen/PYSEC-2020-231.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T6I5ENUYGFNMIH6ZQ62FZ6VU2WD3SIOI"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Feedgen Vulnerable to XML Denial of Service Attacks"
}
GHSA-GP39-H9C2-QW79
Vulnerability from github – Published: 2022-05-14 00:56 – Updated: 2023-09-25 14:47Zend Framework 1 (ZF1) before 1.12.4, Zend Framework 2 before 2.1.6 and 2.2.x before 2.2.6, ZendOpenId, ZendRest, ZendService_AudioScrobbler, ZendService_Nirvanix, ZendService_SlideShare, ZendService_Technorati, and ZendService_WindowsAzure before 2.0.2, ZendService_Amazon before 2.0.3, and ZendService_Api before 1.0.0, when PHP-FPM is used, does not properly share the libxml_disable_entity_loader setting between threads, which might allow remote attackers to conduct XML External Entity (XXE) attacks via an XML external entity declaration in conjunction with an entity reference. NOTE: this issue exists because of an incomplete fix for CVE-2012-5657.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendframework1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendopenid"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendrest"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-audioscrobbler"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-nirvanix"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-slideshare"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-technorati"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-windowsazure"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-amazon"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "zendframework/zendservice-api"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2014-2682"
],
"database_specific": {
"cwe_ids": [
"CWE-611",
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2023-09-25T14:47:31Z",
"nvd_published_at": "2014-11-16T00:59:00Z",
"severity": "MODERATE"
},
"details": "Zend Framework 1 (ZF1) before 1.12.4, Zend Framework 2 before 2.1.6 and 2.2.x before 2.2.6, ZendOpenId, ZendRest, ZendService_AudioScrobbler, ZendService_Nirvanix, ZendService_SlideShare, ZendService_Technorati, and ZendService_WindowsAzure before 2.0.2, ZendService_Amazon before 2.0.3, and ZendService_Api before 1.0.0, when PHP-FPM is used, does not properly share the libxml_disable_entity_loader setting between threads, which might allow remote attackers to conduct XML External Entity (XXE) attacks via an XML external entity declaration in conjunction with an entity reference. NOTE: this issue exists because of an incomplete fix for CVE-2012-5657.",
"id": "GHSA-gp39-h9c2-qw79",
"modified": "2023-09-25T14:47:31Z",
"published": "2022-05-14T00:56:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-2682"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20140419041226/http://www.securityfocus.com/bid/66358"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20150523055201/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2014:072/?name=MDVSA-2014:072"
},
{
"type": "WEB",
"url": "http://advisories.mageia.org/MGASA-2014-0151.html"
},
{
"type": "WEB",
"url": "http://framework.zend.com/security/advisory/ZF2014-01"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2014/q2/0"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2015/dsa-3265"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Several Zend Products Vulnerable to XXE and XEE attacks"
}
GHSA-GP6M-VQHM-5CM5
Vulnerability from github – Published: 2021-07-02 18:37 – Updated: 2024-11-19 18:24XXE vulnerability in 'XML2Dict' version 0.2.2 allows an attacker to cause a denial of service. The parse function does not properly restrict recursive entity references.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "XML2Dict"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.2.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-25951"
],
"database_specific": {
"cwe_ids": [
"CWE-611",
"CWE-776"
],
"github_reviewed": true,
"github_reviewed_at": "2021-07-01T21:42:31Z",
"nvd_published_at": "2021-06-30T12:15:00Z",
"severity": "HIGH"
},
"details": "XXE vulnerability in \u0027XML2Dict\u0027 version 0.2.2 allows an attacker to cause a denial of service. The parse function does not properly restrict recursive entity references.",
"id": "GHSA-gp6m-vqhm-5cm5",
"modified": "2024-11-19T18:24:52Z",
"published": "2021-07-02T18:37:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25951"
},
{
"type": "WEB",
"url": "https://github.com/mcspring/XML2Dict/tree/master"
},
{
"type": "PACKAGE",
"url": "https://github.com/mcspring/xml2dict"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/xml2dict/PYSEC-2021-349.yaml"
},
{
"type": "WEB",
"url": "https://pypi.org/project/XML2Dict"
},
{
"type": "WEB",
"url": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25951"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "XML2Dict XML Entity Expansion Vulnerability"
}
GHSA-GV9R-VXW2-5527
Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 Toolkit could allow an authenticated user to cause a denial-of-service condition due to improper validation of XML entities.
{
"affected": [],
"aliases": [
"CVE-2026-16180"
],
"database_specific": {
"cwe_ids": [
"CWE-776"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-04T17:16:51Z",
"severity": "MODERATE"
},
"details": "IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 Toolkit could allow an authenticated user to cause a denial-of-service condition due to improper validation of XML entities.",
"id": "GHSA-gv9r-vxw2-5527",
"modified": "2026-09-04T18:31:30Z",
"published": "2026-09-04T18:31:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16180"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7286372"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H29V-8CC2-W88R
Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2024-04-04 02:46Qt through 5.14 allows an exponential XML entity expansion attack via a crafted SVG document that is mishandled in QXmlStreamReader, a related issue to CVE-2003-1564.
{
"affected": [],
"aliases": [
"CVE-2015-9541"
],
"database_specific": {
"cwe_ids": [
"CWE-776"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-24T22:15:00Z",
"severity": "HIGH"
},
"details": "Qt through 5.14 allows an exponential XML entity expansion attack via a crafted SVG document that is mishandled in QXmlStreamReader, a related issue to CVE-2003-1564.",
"id": "GHSA-h29v-8cc2-w88r",
"modified": "2024-04-04T02:46:51Z",
"published": "2022-05-24T17:07:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-9541"
},
{
"type": "WEB",
"url": "https://bugreports.qt.io/browse/QTBUG-47417"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PT6327C64Q4RBFRWUSBKCG7SVGBWU5W"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZMMF4OEJAZRVKVXNO7IZWLEZVQGJN6G"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2PT6327C64Q4RBFRWUSBKCG7SVGBWU5W"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZMMF4OEJAZRVKVXNO7IZWLEZVQGJN6G"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
If possible, prohibit the use of DTDs or use an XML parser that limits the expansion of recursive DTD entities.
Mitigation
Before parsing XML files with associated DTDs, scan for recursive entity declarations and do not continue parsing potentially explosive content.
CAPEC-197: Exponential Data Expansion
An adversary submits data to a target application which contains nested exponential data expansion to produce excessively large output. Many data format languages allow the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.