CVE-2021-27343 Memory corruption in n/a
A buffer overflow in SerenityOS ASN.1 parser allows attackers to obtain sensitive information when parsing RSA keys.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27343?
CVE-2021-27343 is a high-severity memory corruption vulnerability in n/a, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-120
Which versions are affected by CVE-2021-27343?
It affects 1 product.
Products include Serenityos Serenityos.
How do I fix CVE-2021-27343?
No fix has been published for CVE-2021-27343 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-27343 being exploited?
There is no known exploitation of CVE-2021-27343 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4v56-mrhv-6j2m.