CVE-2020-11979 Information

Description

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://lists.apache.org/thread.html/r107ea1b1a7a214bc72fe1a04207546ccef542146ae22952e1013b5cc@3Cdev.creadur.apache.org3E https://lists.apache.org/thread.html/r1dc8518dc99c42ecca5ff82d0d2de64cd5d3a4fa691eb9ee0304781e@3Cdev.creadur.apache.org3E https://lists.apache.org/thread.html/r2306b67f20c24942b872b0a41fbdc9330e8467388158bcd19c1094e0@3Cdev.creadur.apache.org3E https://lists.apache.org/thread.html/r4ca33fad3fb39d130cda287d5a60727d9e706e6f2cf2339b95729490@3Cdev.creadur.apache.org3E https://lists.apache.org/thread.html/r5e1cdd79f019162f76414708b2092acad0a6703d666d72d717319305@3Cdev.creadur.apache.org3E https://lists.apache.org/thread.html/rc3c8ef9724b5b1e171529b47f4b35cb7920edfb6e917fa21eb6c64ea403Cdev.ant.apache.org3E https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AALW42FWNQ35F7KB3JVRC6NBVV7AAYYI/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DYBRN5C2RW7JRY75IB7Q7ZVKZCHWAQWS/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3NRQQ7ECII4ZNGW7GBC225LVYMPQEKB/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5