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. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
References (4)
Core 4
Core References
Third Party Advisory
https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html
Scores
CVSS v3
7.5
EPSS
0.0020
EPSS Percentile
42.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (5)
debian/debian_linux
10.0
phpseclib/phpseclib
0.1.1 - 1.0.23Packagist
phpseclib/phpseclib
1.0.0 - 1.0.23
phpseclib/phpseclib
2.0.0 - 2.0.47Packagist
phpseclib/phpseclib
3.0.0 - 3.0.36Packagist
Published
Mar 01, 2024
Tracked Since
Feb 18, 2026