CVE-2024-27355

high

Description

An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).

References

https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html

https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html

https://github.com/phpseclib/phpseclib/blob/978d081fe50ff92879c50ff143c62a143edb0117/phpseclib/File/ASN1.php#L1129

https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b

Details

Source: Mitre, NVD

Published: 2024-03-01

Updated: 2024-08-13

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High