CVE-2019-10912: Symfony/cache Deserialization Of Untrusted Data Vulnerability

HIGH
Advisory Identifier: GHSA-w2fr-65vp-mxw3
Share
CVSS 7.1
CWE-502
Published
Advisory Summary

CVE-2019-10912 is a HIGH (CVSS 7.1) deserialization of untrusted data vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Symfony/cache libraries in the Packagist ecosystem. The issue involves deserialization of untrusted data in symfony. Remediation is available by upgrading affected packages to version 3.4.26, 4.1.12, 4.2.7, 2.8.50, 9.5.8.

CVE-2019-10912 at a Glance

CVE Identifier CVE-2019-10912
GHSA Identifier GHSA-w2fr-65vp-mxw3
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Symfony/cache
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2019-10912

To remediate this vulnerability, upgrade all affected Symfony/cache dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

symfony/cache fixed: 3.4.26 
Upgrade symfony/cache to 3.4.26
symfony/cache fixed: 4.1.12 
Upgrade symfony/cache to 4.1.12
symfony/cache fixed: 4.2.7 
Upgrade symfony/cache to 4.2.7
symfony/phpunit-bridge fixed: 2.8.50 
Upgrade symfony/phpunit-bridge to 2.8.50
symfony/phpunit-bridge fixed: 3.4.26 
Upgrade symfony/phpunit-bridge to 3.4.26
symfony/phpunit-bridge fixed: 4.1.12 
Upgrade symfony/phpunit-bridge to 4.1.12
symfony/phpunit-bridge fixed: 4.2.7 
Upgrade symfony/phpunit-bridge to 4.2.7
symfony/symfony fixed: 2.8.50 
Upgrade symfony/symfony to 2.8.50
symfony/symfony fixed: 3.4.26 
Upgrade symfony/symfony to 3.4.26
symfony/symfony fixed: 4.1.12 
Upgrade symfony/symfony to 4.1.12
symfony/symfony fixed: 4.2.7 
Upgrade symfony/symfony to 4.2.7
typo3/cms-core fixed: 9.5.8 
Upgrade typo3/cms-core to 9.5.8
typo3/cms fixed: 9.5.8 
Upgrade typo3/cms to 9.5.8
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for symfony/cache

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-10912, inspect your project dependencies for Symfony/cache:

inspect dependencies for symfony/cache

Analyze the terminal output to locate any version of Symfony/cache in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.26), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Symfony/cache, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad user input. On serialization or unserialization, this could result in the deletion of files that the current user has access to. This is related to symfony/cache and symfony/phpunit-bridge.

CVE-2019-10912 Affected Symfony/cache Versions

13 component(s)
Fixed Versions:
3.4.264.1.124.2.72.8.509.5.8
Product / Package Ecosystem Affected Versions Fixed Version
symfony/cache
 Packagist
≥ 3.1.0
< 3.4.26
3.4.26
symfony/cache
 Packagist
≥ 4.0.0
< 4.1.12
4.1.12
symfony/cache
 Packagist
≥ 4.2.0
< 4.2.7
4.2.7
symfony/phpunit-bridge
 Packagist
≥ 2.8.0
< 2.8.50
2.8.50
symfony/phpunit-bridge
 Packagist
≥ 3.0.0
< 3.4.26
3.4.26
symfony/phpunit-bridge
 Packagist
≥ 4.0.0
< 4.1.12
4.1.12
symfony/phpunit-bridge
 Packagist
≥ 4.2.0
< 4.2.7
4.2.7
symfony/symfony
 Packagist
≥ 2.8.0
< 2.8.50
2.8.50
symfony/symfony
 Packagist
≥ 3.0.0
< 3.4.26
3.4.26
symfony/symfony
 Packagist
≥ 4.0.0
< 4.1.12
4.1.12
symfony/symfony
 Packagist
≥ 4.2.0
< 4.2.7
4.2.7
typo3/cms-core
 Packagist
≥ 9.0.0
< 9.5.8
9.5.8
typo3/cms
 Packagist
≥ 9.0.0
< 9.5.8
9.5.8

References

NVD — CVE-2019-10912 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10912
Security Fix Commit FIX COMMIT
https://github.com/symfony/symfony/commit/4fb975281634b8d49ebf013af9e502e67c28816b
symfony.com/cve-2019-10912 WEB
https://symfony.com/cve-2019-10912
Symfony/cache Security Information SECURITY
https://www.debian.org/security/2019/dsa-4441
Symfony/cache Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2019-016
symfony.com/blog/cve-2019-10912... WEB
https://symfony.com/blog/cve-2019-10912-prevent-destructors-with-side-effects-from-being-unserialized
seclists.org/bugtraq/2019/may/21 WEB
https://seclists.org/bugtraq/2019/May/21
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLOZX5BZMQKWG7PJRQL6MB5CAMKBQAWD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTJGZJLPG5FHKFH7KNAKNTWOGBB6LXAL
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDSM576XIOVXVCMHNJHLBBZBTOD62LDA
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFARAUAWZE4UDSKVDWRD35D75HI5UGSD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BHHIG4GMSGEIDT3RITSW7GJ5NT6IBHXU
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BAC2TQVEEH5FDJSSWPM2BCRIPTCOEMMO
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lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42UEKSLKJB72P24JBWVN6AADHLMYSUQD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLOZX5BZMQKWG7PJRQL6MB5CAMKBQAWD
lists.fedoraproject.org/archives/list/packa... WEB
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lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDSM576XIOVXVCMHNJHLBBZBTOD62LDA
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFARAUAWZE4UDSKVDWRD35D75HI5UGSD
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHHIG4GMSGEIDT3RITSW7GJ5NT6IBHXU
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAC2TQVEEH5FDJSSWPM2BCRIPTCOEMMO
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QEAOZXVNDA63537A2OIH4QE77EKZR5O
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42UEKSLKJB72P24JBWVN6AADHLMYSUQD
Symfony/cache Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-10912.yaml
Symfony/cache Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-10912.yaml
Symfony/cache Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-10912.yaml
Symfony/cache Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/phpunit-bridge/CVE-2019-10912.yaml
Symfony/cache Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/cache/CVE-2019-10912.yaml

Frequently Asked Questions

What is CVE-2019-10912?
CVE-2019-10912 is a security vulnerability in Symfony/cache involving Deserialization of untrusted data in Symfony under CWE-502: Deserialization of Untrusted Data.
Which Symfony/cache versions are affected?
Affected versions include releases prior to 3.4.26, 4.1.12, 4.2.7, 2.8.50, 9.5.8 across affected packages: symfony/cache, symfony/phpunit-bridge, symfony/symfony, typo3/cms-core, typo3/cms.
What version fixes CVE-2019-10912?
Upgrading to 3.4.26, 4.1.12, 4.2.7, 2.8.50, 9.5.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is symfony/cache affected?
Yes, symfony/cache is affected in releases prior to 3.4.26, 4.1.12, 4.2.7. Upgrade your dependency to 3.4.26, 4.1.12, 4.2.7 or later.
Is symfony/phpunit-bridge affected?
Yes, symfony/phpunit-bridge is affected in releases prior to 2.8.50, 3.4.26, 4.1.12, 4.2.7. Upgrade your dependency to 2.8.50, 3.4.26, 4.1.12, 4.2.7 or later.
What is the CVSS score of CVE-2019-10912?
CVE-2019-10912 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.
What CWE is associated with CVE-2019-10912?
CVE-2019-10912 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Packagist dependencies for CVE-2019-10912?
Run the dependency tree command: 'inspect dependencies for symfony/cache'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w2fr-65vp-mxw3",
  "modified" : "2024-02-05T11:09:27Z",
  "published" : "2020-02-12T18:44:50Z",
  "aliases" : [ "CVE-2019-10912" ],
  "summary" : "Deserialization of untrusted data in Symfony",
  "details" : "In Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad user input. On serialization or unserialization, this could result in the deletion of files that the current user has access to. This is related to symfony/cache and symfony/phpunit-bridge.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"
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  }, {
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    "url" : "https://seclists.org/bugtraq/2019/May/21"
  }, {
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    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLOZX5BZMQKWG7PJRQL6MB5CAMKBQAWD"
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    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHHIG4GMSGEIDT3RITSW7GJ5NT6IBHXU"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAC2TQVEEH5FDJSSWPM2BCRIPTCOEMMO"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-10912.yaml"
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  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-02-11T20:17:25Z",
    "nvd_published_at" : "2019-05-16T22:29:00Z"
  }
}