Vulnerability CVE-2009-1935 - CERT Civis.Net

Vulnerability Name:

CVE-2009-1935 (CCN-51109)

Assigned:

2009-06-10

Published:

2009-06-10

Updated:

2017-08-17

Summary:

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.

CVSS v3 Severity:

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N)
3.8 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N/E:U/RL:TF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:TF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

Vulnerability Type:

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2009-1935

Source: OSVDB
Type: UNKNOWN
55044

Source: CCN
Type: SA35398
FreeBSD Direct Pipe Writes Information Disclosure Vulnerability

Source: SECUNIA
Type: Vendor Advisory
35398

Source: CCN
Type: FreeBSD Web site
FreeBSD

Source: FREEBSD
Type: Patch, Vendor Advisory
FreeBSD-SA-09:09

Source: CONFIRM
Type: Exploit, Vendor Advisory
http://security.freebsd.org/patches/SA-09:09/pipe.patch

Source: CCN
Type: SECTRACK ID: 1022365
FreeBSD Kernel Integer Overflow in Pipe Implementation Lets Local Users Read System Memory

Source: CCN
Type: OSVDB ID: 55044
FreeBSD Direct Pipe Write Page Set Computation Information Disclosure

Source: BID
Type: UNKNOWN
35279

Source: CCN
Type: BID-35279
FreeBSD Direct Pipe Write Local Information Disclosure Vulnerability

Source: SECTRACK
Type: UNKNOWN
1022365

Source: XF
Type: UNKNOWN
freebsd-directpipe-info-disclosure(51109)

Source: XF
Type: UNKNOWN
freebsd-directpipe-info-disclosure(51109)

Vulnerable Configuration:

Configuration 1:

cpe:/o:freebsd:freebsd:6.3:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.3:release_p10:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.3_releng:*:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.4:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.4:release_p4:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.4:stable:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:pre-release:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:rc1:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:release-p1:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:release-p2:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:release-p5:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:stable:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.2:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.2:pre-release:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:freebsd:freebsd:6.3:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:6.4:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.1:-:*:*:*:*:*:*

OR cpe:/o:freebsd:freebsd:7.2:pre-release:*:*:*:*:*:*

Denotes that component is vulnerable