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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…
Medium4.9EPSS 0.44%
- Published
- Updated
- Reserved
- Assigned by
- freebsd
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.9 | AV:L/AC:L/Au:N/C:C/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.44% · top 62% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Weakness
Affected products
n/a
- affected n/a
References (7)
- freebsd-directpipe-info-disclosure(51109) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://security.freebsd.org/patches/SA-09:09/pipe.patch (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35279 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 35398 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 55044 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 1022365 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FreeBSD-SA-09:09 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-1935)Record last updated .