Description
The JFS file system code in Linux 2.4.x has an information leak in which in-memory data is written to the device for the JFS file system, which allows local users to obtain sensitive information by reading the raw device.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 3 | kernel +8 | 2.4.21-37.EL | RHSA-2005:663 |
Advisories 1
- RHSA-2005:663 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 6 Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 2004-0020 vendor-advisory
- oval:org.mitre.oval:def:10329 vdb-entry signature
- TLSA-2004-14 vendor-advisory
- 17002 third-party-advisory
- 10143 vdb-entry
- ESA-20040428-004 vendor-advisory
- RHSA-2005:663 vendor-advisory
- ADV-2005-1878 vdb-entry
- linux-jfs-info-disclosure(15902) vdb-entry
- RHSA-2004:504 vendor-advisory
- MDKSA-2004:029 vendor-advisory
- GLSA-200407-02 vendor-advisory