PT-2021-17406 · Unknown · Serenityos

Alimpfard · Published 2021-04-06 · Updated 2022-12-08 · CVE-2021-27343

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SerenityOS (affected versions not specified)

Description The issue allows an attacker to obtain sensitive information, depending on the context, due to a buffer overflow. This occurs in the Crypto::der decode sequence() function, specifically when parsing RSA Key ASN.1 in the /Userland/Libraries/LibCrypto/ASN1/DER.h component.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-27343

Affected Products

Serenityos

References · 5

• https://github.com/SerenityOS/serenity/commit/48fbf6a88d4822a1e5470cf08f29464511bd72c1 · Patch
• https://osv.dev/vulnerability/CVE-2021-27343 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27343 · Security Note
• https://github.com/SerenityOS/serenity/issues/5317 · Note
• https://github.com/SerenityOS/serenity/pull/5344 · Note