Vulnerability in FreeBSD
CVE-2009-1935
Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.c) in the direct write optimization feature in the pipe implementation in FreeBSD 7.1 through 7.2 and 6.3 through 6.4 allows local users to bypass virtual-to-physical address lookups and read sensitive information in memory pages via unspecified vectors.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (35.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- FreeBSD — versions 6.3, 6.3_releng, 6.4
Weakness classification (CWE)
References
- exchange.xforce.ibmcloud.com/vulnerabilities/51109 (vdb-entry)
- security.freebsd.org/patches/SA-09:09/pipe.patch (Exploit, Vendor Advisory)
- www.securityfocus.com/bid/35279 (vdb-entry)
- secunia.com/advisories/35398 (Vendor Advisory, third-party-advisory)
- osvdb.org/55044 (vdb-entry)
- www.securitytracker.com/id (vdb-entry)
- security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc (vendor-advisory, Patch, Vendor Advisory)