CVE-2020-8908

Temp directory permission issue in Guava

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Published Dec 10, 2020 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-0611 A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.
Github GHSA Github GHSA GHSA-5mg8-w23w-74h3 Information Disclosure in Guava
References
Link Providers
https://github.com/google/guava/commit/fec0dbc4634006a6162cfd4d0d09c962073ddf40 cve-icon cve-icon
https://github.com/google/guava/issues/4011 cve-icon cve-icon
https://lists.apache.org/thread.html/r007add131977f4f576c232b25e024249a3d16f66aad14a4b52819d21%40%3Ccommon-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r07ed3e4417ad043a27bee7bb33322e9bfc7d7e6d1719b8e3dfd95c14%40%3Cdev.drill.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r161b87f8037bbaff400194a63cd2016c9a69f5949f06dcc79beeab54%40%3Cdev.drill.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r215b3d50f56faeb2f9383505f3e62faa9f549bb23e8a9848b78a968e%40%3Ccommits.ws.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r294be9d31c0312d2c0837087204b5d4bf49d0552890e6eec716fa6a6%40%3Cyarn-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r2fe45d96eea8434b91592ca08109118f6308d60f6d0e21d52438cfb4%40%3Cdev.drill.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r3c3b33ee5bef0c67391d27a97cbfd89d44f328cf072b601b58d4e748%40%3Ccommits.pulsar.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r3dd8881de891598d622227e9840dd7c2ef1d08abbb49e9690c7ae1bc%40%3Cissues.geode.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r4776f62dfae4a0006658542f43034a7fc199350e35a66d4e18164ee6%40%3Ccommits.cxf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r49549a8322f62cd3acfa4490d25bfba0be04f3f9ff4d14fe36199d27%40%3Cyarn-dev.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r58a8775205ab1839dba43054b09a9ab3b25b423a4170b2413c4067ac%40%3Ccommon-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r5b3d93dfdfb7708e796e8762ab40edbde8ff8add48aba53e5ea26f44%40%3Cissues.geode.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r5d61b98ceb7bba939a651de5900dbd67be3817db6bfcc41c6e04e199%40%3Cyarn-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r6874dfe26eefc41b7c9a5e4a0487846fc4accf8c78ff948b24a1104a%40%3Cdev.drill.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r68d86f4b06c808204f62bcb254fcb5b0432528ee8d37a07ef4bc8222%40%3Ccommits.ws.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r79e47ed555bdb1180e528420a7a2bb898541367a29a3bc6bbf0baf2c%40%3Cissues.hive.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r7b0e81d8367264d6cad98766a469d64d11248eb654417809bfdacf09%40%3Cyarn-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r841c5e14e1b55281523ebcde661ece00b38a0569e00ef5e12bd5f6ba%40%3Cissues.maven.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/ra7ab308481ee729f998691e8e3e02e93b1dedfc98f6b1cd3d86923b3%40%3Cyarn-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb2364f4cf4d274eab5a7ecfaf64bf575cedf8b0173551997c749d322%40%3Cgitbox.hive.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb8c0f1b7589864396690fe42a91a71dea9412e86eec66dc85bbacaaf%40%3Ccommits.cxf.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rbc7642b9800249553f13457e46b813bea1aec99d2bc9106510e00ff3%40%3Ctorque-dev.db.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rc2dbc4633a6eea1fcbce6831876cfa17b73759a98c65326d1896cb1a%40%3Ctorque-dev.db.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rc607bc52f3507b8b9c28c6a747c3122f51ac24afe80af2a670785b97%40%3Cissues.geode.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rcafc3a637d82bdc9a24036b2ddcad1e519dd0e6f848fcc3d606fd78f%40%3Cdev.hive.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd01f5ff0164c468ec7abc96ff7646cea3cce6378da2e4aa29c6bcb95%40%3Cgithub.arrow.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd2704306ec729ccac726e50339b8a8f079515cc29ccb77713b16e7c5%40%3Cissues.hive.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd5d58088812cf8e677d99b07f73c654014c524c94e7fedbdee047604%40%3Ctorque-dev.db.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd7e12d56d49d73e2b8549694974b07561b79b05455f7f781954231bf%40%3Cdev.pig.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/re120f6b3d2f8222121080342c5801fdafca2f5188ceeb3b49c8a1d27%40%3Cyarn-issues.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/reebbd63c25bc1a946caa419cec2be78079f8449d1af48e52d47c9e85%40%3Cissues.geode.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf00b688ffa620c990597f829ff85fdbba8bf73ee7bfb34783e1f0d4e%40%3Cyarn-dev.hadoop.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf9f0fa84b8ae1a285f0210bafec6de2a9eba083007d04640b82aa625%40%3Cissues.geode.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rfc27e2727a20a574f39273e0432aa97486a332f9b3068f6ac1346594%40%3Cdev.myfaces.apache.org%3E cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-8908 cve-icon
https://security.netapp.com/advisory/ntap-20220210-0003/ cve-icon cve-icon
https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEGUAVA-1015415 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-8908 cve-icon
https://www.oracle.com//security-alerts/cpujul2021.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuApr2021.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuapr2022.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpujan2022.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuoct2021.html cve-icon cve-icon
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
Type Values Removed Values Added
Description A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured. A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.
Weaknesses

Sources

Status
PUBLISHED
Assigner
Google
Published
Updated
Nov 2, 2026, 5:57 PM
Reserved
Feb 12, 2020, 12:00 AM

View source JSON

Updated
Aug 4, 2024, 10:12 AM

JSON

Status
Modified
Published
Dec 10, 2020, 11:15 PM
Modified
Nov 2, 2026, 6:18 PM

View source JSON

Severity
Low
Public date
Sep 8, 2020, 12:00 AM

View source Bugzilla JSON

No data.