CVE-2021-27815

Public Exploit

Description

NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.32%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libexif/exif/issues/4 third party advisory exploit
https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c third party advisory patch
https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSWAXZVNXYLV3E4R6YQTEGRGMGWEAR76/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZQ3L45F7S7PQPG5HEHXOCGNOO64MJOS/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMC6OTXZRPCUD3LOSWO4ISR7CH7NJQDT/ vendor advisory
https://security.gentoo.org/glsa/202210-28 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-27815?
CVE-2021-27815 has been scored as a medium severity vulnerability.
How to fix CVE-2021-27815?
To fix CVE-2021-27815, 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-2021-27815 being actively exploited in the wild?
It is possible that CVE-2021-27815 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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