Buffer overflow in Serenityos
CVE-2021-27343
SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h Crypto::der_decode_sequence() function. The attack vector is: Parsing RSA Key ASN.1.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/SerenityOS/serenity/issues/5317 (Third Party Advisory)
- github.com/SerenityOS/serenity/pull/5344 (Third Party Advisory)
- github.com/SerenityOS/serenity/commit/48fbf6a88d4822a1e5470cf08f29464511bd72c1 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27343?
- CVE-2021-27343 is a high-severity vulnerability in Serenityos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2021-04-06.
- How severe is CVE-2021-27343?
- High severity. CVSS v3 base score is 7.5 out of 10.