CVE-2019-14866
When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may contain files with permissions the attacker did not have or in paths he did not have access to.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In all versions of cpio before 2.13 does not properly validate input files when generating TAR archives. When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may contain files with permissions the attacker did not have or in paths he did not have access to. Extracting those archives from a high-privilege user without carefully reviewing them may lead to the compromise of the system.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.69% probability · 52th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- gnu/cpio · redhat/enterprise linux
- Source
- secalert@redhat.com
EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14866Exploit, Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html
- https://lists.gnu.org/archive/html/bug-cpio/2019-08/msg00003.htmlMailing List, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/bug-cpio/2019-11/msg00000.htmlExploit, Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14866Exploit, Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00007.html
- https://lists.gnu.org/archive/html/bug-cpio/2019-08/msg00003.htmlMailing List, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/bug-cpio/2019-11/msg00000.htmlExploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.