CVE-2009-1935

Name: CVE-2009-1935
Creator: NVD / NIST
Published: 2009-06-18T18:30:00.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.44%

Last modified Jun 16, 2026

CVE-2009-1935 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.44%

34.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	6.3
Freebsd	Freebsd	6.3_releng
Freebsd	Freebsd	6.4
Freebsd	Freebsd	7.1
Freebsd	Freebsd	7.2

References

http://osvdb.org/55044
http://secunia.com/advisories/35398Vendor Advisory
http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.ascPatch, Vendor Advisory
http://security.freebsd.org/patches/SA-09:09/pipe.patchExploit, Vendor Advisory
http://www.securityfocus.com/bid/35279
http://www.securitytracker.com/id?1022365
https://exchange.xforce.ibmcloud.com/vulnerabilities/51109
http://osvdb.org/55044
http://secunia.com/advisories/35398Vendor Advisory
http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.ascPatch, Vendor Advisory
http://security.freebsd.org/patches/SA-09:09/pipe.patchExploit, Vendor Advisory
http://www.securityfocus.com/bid/35279
http://www.securitytracker.com/id?1022365
https://exchange.xforce.ibmcloud.com/vulnerabilities/51109

Timeline

Published: Jun 18, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-1935?

How severe is CVE-2009-1935?

Severity scoring for CVE-2009-1935 is pending analysis. The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2009-1935?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1935?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST