If left unpatched, CVE-2018-1000636 could lead to major system disruptions or data loss.
Status: Modified
Last updated: 🕞 21 Nov 2024, 03:40 UTC
Originally published on: 🕢 20 Aug 2018, 19:31 UTC
Time between publication and last update: 2284 days
CVSS Release: version 3
nvd@nist.gov
Primary
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVE-2018-1000636: JerryScript version Tested on commit f86d7459d195c8ba58479d1861b0cc726c8b3793. Analysing history it seems that the issue has been present since commit 64a340ffeb8809b2b66bbe32fd443a8b79fdd860 contains a CWE-476: NULL Pointer Dereference vulnerability in Triggering undefined behavior at jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:598 (passing NULL to memcpy as 2nd argument) results in null pointer dereference (segfault) at jerry-core/jmem/jmem-heap.c:463 that can result in Crash due to segmentation fault. This attack appear to be exploitable via The victim must execute specially crafted javascript code. This vulnerability appears to have been fixed in after commit 87897849f6879df10e8ad68a41bf8cf507edf710.
The exploitability of CVE-2018-1000636 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
With low attack complexity and no required privileges, CVE-2018-1000636 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
Above is the CVSS Sub-score Breakdown for CVE-2018-1000636, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
Below is the Impact Analysis for CVE-2018-1000636, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
The EPSS score estimates the probability that this vulnerability will be exploited in the near future.
EPSS Score: 0.079% (probability of exploit)
EPSS Percentile: 37.18%
(lower percentile = lower relative risk)
This vulnerability is less risky than approximately 62.82% of others.
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