CVE-2021-32553

It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-17 package apport hooks, it could expose private data to other local users.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:20.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:21.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:21.10:::::::*

Configuration 2 (hide)

cpe:2.3:a:oracle:openjdk:17:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-12 04:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-32553

Mitre link : CVE-2021-32553

CVE.ORG link : CVE-2021-32553

JSON object : View

Products Affected

canonical

ubuntu_linux

oracle

openjdk

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

CWE-61

UNIX Symbolic Link (Symlink) Following

{"id": "CVE-2021-32553", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 2.0}]}, "published": "2021-06-12T04:15:12.157", "references": [{"url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}, {"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-59"}, {"lang": "en", "value": "CWE-61"}]}], "descriptions": [{"lang": "en", "value": "It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-17 package apport hooks, it could expose private data to other local users."}, {"lang": "es", "value": "Se ha detectado que la funci\u00f3n read_file() en el archivo apport/hookutils.py podr\u00eda seguir enlaces simb\u00f3licos o abrir FIFOs. Cuando esta funci\u00f3n es usada por el paquete openjdk-17 apport hooks, podr\u00eda exponer datos privados a otros usuarios locales"}], "lastModified": "2021-06-16T13:08:57.547", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "338B3AAC-C147-4A31-95E7-6E8A6FB4B3FC"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "D5F0EBD8-0681-4AE6-90E5-78F8AAB39123"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AAE4D2D0-CEEB-416F-8BC5-A7987DF56190"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oracle:openjdk:17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4D0A929D-6054-4EFB-8BAD-58826D22D34B"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}