CVE-2019-12499

Description

Firejail before 0.9.60 allows truncation (resizing to length 0) of the firejail binary on the host by running exploit code inside a firejail sandbox and having the sandbox terminated. To succeed, certain conditions need to be fulfilled: The jail (with the exploit code inside) needs to be started as root, and it also needs to be terminated as root from the host (either by stopping it ungracefully (e.g., SIGKILL), or by using the --shutdown control command). This is similar to CVE-2019-5736.

8.1

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 1.37% Top 25%

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org

Affected: n/a n/a

References

Link	Tags
https://github.com/netblue30/firejail/issues/2401	third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CDY7B73YDRBURA25APSHD5PFEO4TNSFW/	vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGVULJ6IKVDO6UAVIQRHQVSKOUD6QDWM/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-12499?: CVE-2019-12499 has been scored as a high severity vulnerability.
How to fix CVE-2019-12499?: To fix CVE-2019-12499, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12499 being actively exploited in the wild?: It is possible that CVE-2019-12499 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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