Security readout for executives and security teams
CVE-2021-35940 is a regression in Apache Portable Runtime 1.7.0. A previously fixed out-of-bounds read in APR time conversion functions was accidentally not carried forward into the 1.7.x branch. Organizations are mainly exposed where applications or servers bundle or link APR 1.7.0. Exposure is likely indirect through software that bundles or dynamically links Apache Portable Runtime 1.7.0. Inventory should include server stacks, native libraries, packaged dependencies, and vendor-supplied runtime components. Handle as a dependency hygiene and exposure-reduction item, not as a confirmed emergency. The key business task is finding APR 1.7.0 in the environment and applying vendor-backed fixes before it remains hidden in server or application stacks. Mitigation focus: Identify systems and applications using APR 1.7.0.; Apply the Apache-provided APR 1.7.0 patch where applicable.; Follow vendor guidance for bundled APR in third-party products..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2021-35940 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://dist.apache.org/repos/dist/release/apr/patches/apr-1.7.0-CVE-2021-35940.patchCVE reference · x_refsource_MISC
- https://lists.apache.org/thread.html/ra2868b53339a6af65577146ad87016368c138388b09bff9d2860f50e%40%3Cdev.apr.apache.org%3ECVE reference · x_refsource_MISC
- [announce] 20210823 CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613CVE reference · mailing-list, x_refsource_MLIST
- [apr-dev] 20210831 APR 1.7.1 release?CVE reference · mailing-list, x_refsource_MLIST
- [httpd-dev] 20210831 APR 1.7.1 release?CVE reference · mailing-list, x_refsource_MLIST
- [apr-dev] 20210831 Re: APR 1.7.1 release?CVE reference · mailing-list, x_refsource_MLIST
- [apr-dev] 20210901 Re: APR 1.7.1 release?CVE reference · mailing-list, x_refsource_MLIST
- [apr-dev] 20210916 Re: CVE-2021-35940: Apache Portable Runtime (APR): Regression of CVE-2017-12613CVE reference · mailing-list, x_refsource_MLIST
- [tomcat-dev] 20210922 [jira] [Created] (MTOMCAT-327) Tomcat 9.0.50 and it has apr-1.7.0 dependency, with Address CVE-2021-35940CVE reference · mailing-list, x_refsource_MLIST
- [tomcat-dev] 20210922 [jira] [Resolved] (MTOMCAT-327) Tomcat 9.0.50 and it has apr-1.7.0 dependency, with Address CVE-2021-35940CVE reference · mailing-list, x_refsource_MLIST
- [tomcat-dev] 20210922 [jira] [Commented] (MTOMCAT-327) Tomcat 9.0.50 and it has apr-1.7.0 dependency, with Address CVE-2021-35940CVE reference · mailing-list, x_refsource_MLIST
- [tomcat-dev] 20210922 [jira] [Reopened] (MTOMCAT-327) Tomcat 9.0.50 and it has apr-1.7.0 dependency, with Address CVE-2021-35940CVE reference · mailing-list, x_refsource_MLIST
- https://www.oracle.com/security-alerts/cpujul2022.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
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