CVE-2016-20043

HIGHCVSS 8.6/10EPSS 0.20%

Last modified

CVE-2016-20043 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. NRSS RSS Reader 0.3.9-1 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -F parameter. Attackers can craft a malicious input with 256 bytes of padding followed by a controlled EIP value to overwrite the return address and achieve code execution.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

NRSS RSS Reader 0.3.9-1 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -F parameter. Attackers can craft a malicious input with 256 bytes of padding followed by a controlled EIP value to overwrite the return address and achieve code execution.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0
8.6/10

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

EPSS Probability
0.20%

10.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NrssNrss<= 0.3.9-1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2016-20043?
NRSS RSS Reader 0.3.9-1 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -F parameter. Attackers can craft a malicious input with 256 bytes of padding followed by a controlled EIP value to overwrite the return address and achieve code execution.
How severe is CVE-2016-20043?
CVE-2016-20043 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2016-20043?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-20043?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST