Unrated severityNVD Advisory· Published Jun 18, 2009· Updated Jun 16, 2026
CVE-2009-1935
CVE-2009-1935
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
16cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:*+ 15 more
- cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.3:release_p10:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.3_releng:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:release_p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:6.4:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:pre-release:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:release-p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.1:stable:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:7.2:pre-release:*:*:*:*:*:*
- (no CPE)range: 7.1-7.2, 6.3-6.4
Patches
Vulnerability mechanics
References
7- security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.ascnvdPatchVendor Advisory
- security.freebsd.org/patches/SA-09:09/pipe.patchnvdExploitVendor Advisory
- secunia.com/advisories/35398nvdVendor Advisory
- osvdb.org/55044nvd
- www.securityfocus.com/bid/35279nvd
- www.securitytracker.com/idnvd
- exchange.xforce.ibmcloud.com/vulnerabilities/51109nvd
News mentions
0No linked articles in our index yet.