8.4high
CVE-2016-20041
Yasr 0.6.9-5 Buffer Overflow via Command-line Parameter
Published 7 mo ago · modified 4 mo ago · JSON
CVSS
8.4
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
0.2%
percentile 6%
Public exploits
0
none known
Summary
Yasr 0.6.9-5 contains a buffer overflow vulnerability that allows local attackers to crash the application or execute arbitrary code by supplying an oversized argument to the -p parameter. Attackers can invoke yasr with a crafted payload containing junk data, shellcode, and a return address to overwrite the stack and trigger code execution.
CISA SSVC assessment
- Exploitation
- Proof of concept public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction (EPSS)
0.17% probability of exploitation in the next 30 days, higher than 6% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- yasr Yasr Screen Reader
Classification
- Weakness
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
- exploit-db.com /exploits/39734 · exploit
- yasr.sourceforge.net / · product
- vulncheck.com /advisories/yasr-5-buffer-overflow-via-command-line-parameter · third-party-advisory
Sources
- CVE List: CVE-2016-20041
- NVD: CVE-2016-20041
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