CVE-2006-4813
The __block_prepare_write function in fs/buffer.c for Linux kernel 2.6.x before 2.6.13 does not properly clear buffers during certain error conditions, which allows local users to read portions of files that have been unlinked.
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
The __block_prepare_write function in fs/buffer.c for Linux kernel 2.6.x before 2.6.13 does not properly clear buffers during certain error conditions, which allows local users to read portions of files that have been unlinked.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 0.41% probability · 35th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://osvdb.org/31376
- http://rhn.redhat.com/errata/RHSA-2007-0014.html
- http://secunia.com/advisories/23370
- http://secunia.com/advisories/23384
- http://secunia.com/advisories/23474
- http://secunia.com/advisories/23752
- http://secunia.com/advisories/23997
- http://secunia.com/advisories/24206
- http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=152becd26e0563aefdbc4fd1fe491928efe92d1f
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:012
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:025
- http://www.novell.com/linux/security/advisories/2006_79_kernel.html
- http://www.securityfocus.com/bid/21522
- http://www.ubuntu.com/usn/usn-395-1
- http://www.us.debian.org/security/2006/dsa-1233
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=207463Patch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11701
- http://osvdb.org/31376
- http://rhn.redhat.com/errata/RHSA-2007-0014.html
- http://secunia.com/advisories/23370
- http://secunia.com/advisories/23384
- http://secunia.com/advisories/23474
- http://secunia.com/advisories/23752
- http://secunia.com/advisories/23997
- http://secunia.com/advisories/24206
- http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=152becd26e0563aefdbc4fd1fe491928efe92d1f
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:012
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:025
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.