CVE-2012-4508
Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from a deleted file by reading an extent that was not properly marked as
02 Description
Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from a deleted file by reading an extent that was not properly marked as
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.28% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 20.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2012-12-21 11:00Z13 YR AGO
- Last updated
- 2024-08-06 20:35Z2 YR AGO
- Reserved
- 2012-08-21
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 98337af0789d7aafa1938ac723dd52d54325a1c04b7dc2010c792ac2d3b7dda8
05 Affected products
06 References
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=dee1f973ca341c266229faa5a1a5bb268bed3531
- rhn.redhat.comRHSA-2012:1540http://rhn.redhat.com/errata/RHSA-2012-1540.html
- rhn.redhat.comRHSA-2013:0496http://rhn.redhat.com/errata/RHSA-2013-0496.html
- rhn.redhat.comRHSA-2013:1783http://rhn.redhat.com/errata/RHSA-2013-1783.html
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.16
- www.ubuntu.comUSN-1645-1http://www.ubuntu.com/usn/USN-1645-1
- www.ubuntu.comUSN-1899-1http://www.ubuntu.com/usn/USN-1899-1
- rhn.redhat.comRHSA-2013:1519http://rhn.redhat.com/errata/RHSA-2013-1519.html
- www.suse.comSUSE-SU-2012:1679https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html
- github.comhttps://github.com/torvalds/linux/commit/dee1f973ca341c266229faa5a1a5bb268bed3531
- lists.fedoraproject.orgFEDORA-2012-17479http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=869904
- www.openwall.com[oss-security] 20121025 CVE-2012-4508 -- kernel: ext4: AIO vs fallocate stale data exposurehttp://www.openwall.com/lists/oss-security/2012/10/25/1
- www.ubuntu.comUSN-1900-1http://www.ubuntu.com/usn/USN-1900-1
07 Fixed in
Debian 12
- linux Fixed in 3.2.35-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 3.2.35-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 3.2.35-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.