vulnwire
7.2high

CVE-2007-11891 exploit

Integer overflow in the envwrite function in the Alcatel-Lucent Bell Labs Plan 9 kernel allows local users to overwrite certain memory addr…

Published 19 y ago · modified 4 mo ago · JSON

CVSS
7.2
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.8%
percentile 57%
Public exploits
1
Exploit-DB

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.

Exploit prediction (EPSS)

0.80% probability of exploitation in the next 30 days, higher than 57% of all scored CVEs.

Exploits and detections

  • EDB-3383 Plan 9 Kernel - 'devenv.c OTRUNC/pwrite' Local Privilege Escalation · local · 2007-02-28

CVSS scores

Assigned byVersionScoreVector
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

References

  • securityfocus.com /bid/22749 · vdb-entry, x_refsource_BID, x_transferred
  • exploit-db.com /exploits/3383 · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • kernelspace.us /itheft.c · x_refsource_MISC, x_transferred
  • osvdb.org /34956 · vdb-entry, x_refsource_OSVDB, x_transferred
  • lists.immunitysec.com /pipermail/dailydave/2007-February/004118.html · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.