Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / conan/jerryscript/CVE-2021-42863
Advisory ID gitlab/conan/jerryscript/CVE-2021-42863
Aliases CVE-2021-42863
Summary Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv2 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/jerryscript/CVE-2021-42863.yml
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/jerryscript/CVE-2021-42863.yml
Reference id Reference type URL
https://github.com/jerryscript-project/jerryscript/issues/4793
https://github.com/jerryscript-project/jerryscript/pull/4794
CVE-2021-42863 https://nvd.nist.gov/vuln/detail/CVE-2021-42863
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/jerryscript/CVE-2021-42863.yml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/jerryscript/CVE-2021-42863.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.