CVE-2013-2171
The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass…
Does this matter?
Lower severity and a low EPSS score (6.94%). Track it; it rarely justifies an emergency change on its own.
Description
The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.
- CVSS 2.0
- 6.9 MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 6.94% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- freebsd/freebsd
- Source
- secalert@redhat.com
References
- http://svnweb.freebsd.org/base?view=revision&revision=251901
- http://www.debian.org/security/2013/dsa-2714
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.ascVendor Advisory
- http://svnweb.freebsd.org/base?view=revision&revision=251901
- http://www.debian.org/security/2013/dsa-2714
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.ascVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.