CVE-2017-9438
Published: 5 June 2017
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
yara Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| cosmic |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| disco |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| eoan |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| focal |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| groovy |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| hirsute |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| impish |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| jammy |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| kinetic |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| lunar |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| mantic |
Not vulnerable
(3.7.1-1ubuntu2)
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(3.6.1+dfsg-1)
|
|
| xenial |
Needed
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Ignored
(end of life)
|
|
|
Patches: upstream: https://github.com/VirusTotal/yara/commit/10e8bd3071677dd1fa76beeef4bc2fc427cea5e7 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |