Vulnerability Details CVE-2021-35940
An out-of-bounds array read in the apr_time_exp*() functions was fixed in the Apache Portable Runtime 1.6.3 release (CVE-2017-12613). The fix for this issue was not carried forward to the APR 1.7.x branch, and hence version 1.7.0 regressed compared to 1.6.3 and is vulnerable to the same issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 15.5%
CVSS Severity
CVSS v3 Score 7.1
CVSS v2 Score 3.6
References
- http://mail-archives.apache.org/mod_mbox/www-announce/201710.mbox/%3CCACsi251B8UaLvM-rrH9fv57-zWi0zhyF3275_jPg1a9VEVVoxw%40mail.gmail.com%3E
- http://svn.apache.org/viewvc?view=revision&revision=1891198
- http://www.openwall.com/lists/oss-security/2021/08/23/1
- https://dist.apache.org/repos/dist/release/apr/patches/apr-1.7.0-CVE-2021-35940.patch
- https://lists.apache.org/thread.html/r1c788464a25fbc046a72aff451bc8186386315d92a2dd0349903fa4f%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r317c398ee5736e627f7887b06607e5c58b45a696d352ba8c14615f55%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r54c755c74b9e3846cfd84039b1967d37d2870750a02d7c603983f6ed%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r72479f4dcffaa8a4732d5a0e87fecc4bace4932e28fc26f7d400e2b3%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r72a069753b9363c29732e59ad8f0d22a633fb6a699980407511ac961%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r7bb4a6ed88fc48152174e664aae30ea9a8b058eb5b44cf08cb9beb4b%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r7bb4a6ed88fc48152174e664aae30ea9a8b058eb5b44cf08cb9beb4b%40%3Cdev.httpd.apache.org%3E
- https://lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/ra38094406cc38a05218ebd1158187feda021b0c3a1df400bbf296af8%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/rafe54755850e93de287c36540972457b2dd86332106aa7817c7c27fb%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rb1f3c85f50fbd924a0051675118d1609e57957a02ece7facb723155b%40%3Cannounce.apache.org%3E
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://mail-archives.apache.org/mod_mbox/www-announce/201710.mbox/%3CCACsi251B8UaLvM-rrH9fv57-zWi0zhyF3275_jPg1a9VEVVoxw%40mail.gmail.com%3E
- http://svn.apache.org/viewvc?view=revision&revision=1891198
- http://www.openwall.com/lists/oss-security/2021/08/23/1
- https://dist.apache.org/repos/dist/release/apr/patches/apr-1.7.0-CVE-2021-35940.patch
- https://lists.apache.org/thread.html/r1c788464a25fbc046a72aff451bc8186386315d92a2dd0349903fa4f%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r317c398ee5736e627f7887b06607e5c58b45a696d352ba8c14615f55%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r54c755c74b9e3846cfd84039b1967d37d2870750a02d7c603983f6ed%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r72479f4dcffaa8a4732d5a0e87fecc4bace4932e28fc26f7d400e2b3%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r72a069753b9363c29732e59ad8f0d22a633fb6a699980407511ac961%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r7bb4a6ed88fc48152174e664aae30ea9a8b058eb5b44cf08cb9beb4b%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/r7bb4a6ed88fc48152174e664aae30ea9a8b058eb5b44cf08cb9beb4b%40%3Cdev.httpd.apache.org%3E
- https://lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/ra38094406cc38a05218ebd1158187feda021b0c3a1df400bbf296af8%40%3Cdev.apr.apache.org%3E
- https://lists.apache.org/thread.html/rafe54755850e93de287c36540972457b2dd86332106aa7817c7c27fb%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rb1f3c85f50fbd924a0051675118d1609e57957a02ece7facb723155b%40%3Cannounce.apache.org%3E
- https://www.oracle.com/security-alerts/cpujul2022.html
Products affected by CVE-2021-35940
-
cpe:2.3:a:apache:portable_runtime:1.7.0
-
cpe:2.3:a:oracle:http_server:12.2.1.3.0
-
cpe:2.3:a:oracle:http_server:12.2.1.4.0