CVE-2020-10769
kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned.
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.
Se encontró un defecto de lectura excesiva del búfer en el kernel de RH versiones anteriores a 5.0, en la función crypto_authenc_extractkeys en el archivo crypto/authenc.c en el módulo del algoritmo Criptográfico IPsec, authenc. Cuando una carga útil de más de 4 bytes y no sigue las pautas de límites de alineación de 4 bytes, esto causa una amenaza de lectura excesiva del búfer, conllevando a un bloqueo del sistema. Este fallo permite a un atacante local con privilegios de usuario causar una denegación de servicio
A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-03-20 CVE Reserved
- 2020-06-26 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-125: Out-of-bounds Read
CAPEC
References (6)
URL | Tag | Source |
---|---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1708775%3B | X_refsource_misc | |
https://www.oracle.com/security-alerts/cpuApr2021.html | X_refsource_misc |
URL | Date | SRC |
---|---|---|
https://lkml.org/lkml/2019/1/21/675 | 2024-08-04 |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html | 2023-02-12 | |
https://access.redhat.com/security/cve/CVE-2020-10769 | 2020-12-15 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1708775 | 2020-12-15 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
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