CVE-2018-12088

Name: CVE-2018-12088
Creator: NVD / NIST
Published: 2018-06-10T23:29:00.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.88%

Last modified Jun 17, 2026

CVE-2018-12088 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.88% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.88%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
S3ql Project	S3ql	< 2.27

References

https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020Patch, Third Party Advisory
https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-failsExploit, Third Party Advisory
https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o
https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020Patch, Third Party Advisory
https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-failsExploit, Third Party Advisory
https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o

Timeline

Published: Jun 10, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12088?

How severe is CVE-2018-12088?

Severity scoring for CVE-2018-12088 is pending analysis. The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12088?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12088?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST