Vulnerability Details : CVE-2016-10211
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule that is mishandled in the yr_parser_lookup_loop_variable function.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2016-10211
- cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-10211
0.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-10211
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2016-10211
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-10211
-
https://github.com/VirusTotal/yara/commit/890c3f850293176c0e996a602ffa88b315f4e98f
Fix issue #575 · VirusTotal/yara@890c3f8 · GitHubPatch;Vendor Advisory
-
http://www.securityfocus.com/bid/98078
YARA CVE-2016-10211 Denial of Service Vulnerability
-
https://github.com/VirusTotal/yara/issues/575
Use After Free in yr_parser_lookup_loop_variable() · Issue #575 · VirusTotal/yara · GitHubExploit;Issue Tracking;Patch
Jump to