CVE-2017-10686
Published: 29 June 2017
In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that could cause multiple damages. For example, it causes a corrupted double-linked list in detoken(), a double free or corruption in delete_Token(), and an out-of-bounds write in detoken(). It has a high possibility to lead to a remote code execution attack.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
nasm Launchpad, Ubuntu, Debian |
artful |
Released
(2.13.01-2ubuntu0.1)
|
| bionic |
Not vulnerable
(2.13.02-0.1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was released [2.10.09-1ubuntu0.1])
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.11.08-1ubuntu0.1)
|
|
| yakkety |
Ignored
(reached end-of-life)
|
|
| zesty |
Ignored
(reached end-of-life)
|
|
|
Patches: upstream: http://repo.or.cz/nasm.git/commit/736be08cf3ec4d1da31f350359feb8c1c782de9a upstream: http://repo.or.cz/nasm.git/commit/b6a173fad54f25f6e1cb0c3eaf230ac11fb6a070 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |