What is CVE-2018-1000636?

CVE-2018-1000636 is a medium-severity vulnerability in Jerryscript, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-08-20.

How severe is CVE-2018-1000636?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Jerryscript

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.

EPSS: 0.011 (62.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Jerryscript — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-1000636?: CVE-2018-1000636 is a medium-severity vulnerability in Jerryscript, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-08-20.
How severe is CVE-2018-1000636?: Medium severity. CVSS v3 base score is 6.5 out of 10.