ceph: give up on paths longer than PATH_MAX (Linux Linux)

CVE-2024-53685
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.23 % · percentile 14 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ceph: give up on paths longer than PATH_MAX If the full path to be built by ceph_mdsc_build_path() happens to be longer than PATH_MAX, then this function will enter an endless (retry) loop, effectively blocking the whole task. Most of the machine becomes unusable, making this a very simple and effective DoS vulnerability. I cannot imagine why this retry was ever implemented, but it seems rather useless and harmful to me. Let's remove it and fail with ENAMETOOLONG instead.

Weaknesses (CWE)

  • CWE-835 — Loop with Unreachable Exit Condition

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 9030aaf9bf0a1eee47a154c316c789e959638b0f < 0f2b2d9e881c90402dbe28f9ba831775b7992e1f ; affected 9030aaf9bf0a1eee47a154c316c789e959638b0f < d42ad3f161a5a487f81915c406f46943c7187a0a ; affected 9030aaf9bf0a1eee47a154c316c789e959638b0f < e4b168c64da06954be5d520f6c16469b1cadc069 ; affected 9030aaf9bf0a1eee47a154c316c789e959638b0f < c47ed91156daf328601d02b58d52d9804da54108 ; affected 9030aaf9bf0a1eee47a154c316c789e959638b0f < 99a37ab76a315c8307eb5b0dc095d8ad9d8efeaa ; affected 9030aaf9bf0a1eee47a154c316c789e959638b0f < 550f7ca98ee028a606aa75705a7e77b1bd11720f
Linux · Linuxaffected 2.6.34 ; unaffected 0 < 2.6.34 ; unaffected 5.10.234 ≤ 5.10.* ; unaffected 5.15.177 ≤ 5.15.* ; unaffected 6.1.125 ≤ 6.1.* ; unaffected 6.6.70 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD