Vulnerability Monitor

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CVE-2020-10769

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.

Published

2020-06-26T16:15:12.140

Last Modified

2024-11-21T04:56:01.970

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	redhat	enterprise_linux	7.0	Yes
Operating System	opensuse	leap	15.1	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing List, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1708775%3B ([email protected])
https://lkml.org/lkml/2019/1/21/675 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpuApr2021.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1708775%3B (af854a3a-2127-422b-91ae-364da2661108)
https://lkml.org/lkml/2019/1/21/675 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpuApr2021.html (af854a3a-2127-422b-91ae-364da2661108)