CVE-2021-35517

Apache Commons Compress 1.1 to 1.20 denial of service vulnerability

Published Jul 13, 2021 CVSS 3.1 · 7.5 High EPSS 10.6% KEV · Not listed
Description
When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' tar package.

Remediation

Vendor Workaround

Commons Compress users should upgrade to 1.21 or later.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2021-1939 When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' tar package.
Github GHSA Github GHSA GHSA-xqfj-vm6h-2x34 Improper Handling of Length Parameter Inconsistency in Compress
References
Link Providers
http://www.openwall.com/lists/oss-security/2021/07/13/3 cve-icon cve-icon cve-icon
http://www.openwall.com/lists/oss-security/2021/07/13/5 cve-icon cve-icon
https://commons.apache.org/proper/commons-compress/security-reports.html cve-icon cve-icon cve-icon
https://lists.apache.org/thread.html/r31f75743ac173b0a606f8ea6ea53f351f386c44e7bcf78ae04007c29%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r457b2ed564860996b20d938566fe8bd4bfb7c37be8e205448ccb5975%40%3Cannounce.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r54afdab05e01de970649c2d91a993f68a6b00cd73e6e34e16c832d46%40%3Cuser.ant.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r605d906b710b95f1bbe0036a53ac6968f667f2c249b6fbabada9a940%40%3Cuser.commons.apache.org%3E cve-icon cve-icon cve-icon
https://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/ra393ffdc7c90a4a37ea023946f390285693795013a642d80fba20203%40%3Cannounce.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-35517 cve-icon
https://security.netapp.com/advisory/ntap-20211022-0001/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-35517 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/cpujul2022.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': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Oct 8, 2026, 9:13 PM
Reserved
Jun 27, 2021, 12:00 AM
Status
Modified
Published
Jul 13, 2021, 8:15 AM
Modified
Oct 8, 2026, 10:17 PM
Severity
Moderate
Public date
Jul 13, 2021, 12:00 AM