CVE-2017-5923
Published: 3 April 2017
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.
Priority
Status
Package | Release | Status |
---|---|---|
yara Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
bionic |
Not vulnerable
(3.5.0+dfsg-9)
|
|
cosmic |
Not vulnerable
(3.5.0+dfsg-9)
|
|
impish |
Not vulnerable
(3.5.0+dfsg-9)
|
|
groovy |
Not vulnerable
(3.5.0+dfsg-9)
|
|
xenial |
Needed
|
|
kinetic |
Not vulnerable
(3.5.0+dfsg-9)
|
|
lunar |
Not vulnerable
(3.5.0+dfsg-9)
|
|
disco |
Not vulnerable
(3.5.0+dfsg-9)
|
|
eoan |
Not vulnerable
(3.5.0+dfsg-9)
|
|
focal |
Not vulnerable
(3.5.0+dfsg-9)
|
|
hirsute |
Not vulnerable
(3.5.0+dfsg-9)
|
|
jammy |
Not vulnerable
(3.5.0+dfsg-9)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Needed
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
mantic |
Not vulnerable
(3.5.0+dfsg-9)
|
|
Patches: upstream: https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636 |
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 |