Vulnerability in Bell Labs Plan 9
CVE-2007-1189
Integer overflow in the envwrite function in the Alcatel-Lucent Bell Labs Plan 9 kernel allows local users to overwrite certain memory addresses with kernel memory via a large n argument, as demonstrated by (1) modifying the iseve function to gain privileges and (2) making the devpermcheck function grant unrestricted device permissions.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.2 (High). Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.008 (55.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
References
- www.securityfocus.com/bid/22749 (Exploit, vdb-entry)
- www.exploit-db.com/exploits/3383 (exploit)
- kernelspace.us/itheft.c (Exploit)
- osvdb.org/34956 (vdb-entry)
- lists.immunitysec.com/pipermail/dailydave/2007-February/004118.html (mailing-list, Exploit)