CVE-2018-12088

NameCVE-2018-12088
DescriptionS3QL 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
s3ql (PTS)jessie2.11.1+dfsg-3vulnerable
stretch2.21+dfsg-3vulnerable
buster, sid2.32+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
s3qlsource(unstable)2.27.1+dfsg-1low

Notes

[stretch] - s3ql <ignored> (Minor issue, backports would change the file system revision rendering it unable to read older file systems)
[jessie] - s3ql <ignored> (Minor issue, backports would change the file system revision rendering it unable to read older file systems)
https://groups.google.com/forum/#!topic/s3ql/4TzCVIMkA4o
https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020

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