CVE-2018-12088

Public Exploit

Description

S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.27%
Third-Party Advisory bitbucket.org Third-Party Advisory bitbucket.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-fails third party advisory exploit
https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o
https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2018-12088?
CVE-2018-12088 has been scored as a high severity vulnerability.
How to fix CVE-2018-12088?
To fix CVE-2018-12088, 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-2018-12088 being actively exploited in the wild?
It is possible that CVE-2018-12088 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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