CVE-2024-27355
Duplicate Advisory: phpseclib does not properly limit the ASN1 OID length
7.5
HIGH
CVSS 3.1
EPSS 0.44%
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).
How to fix CVE-2024-27355
To remediate CVE-2024-27355, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.30-2+deb11u2 or later
- —upgrade to 3.0.19-1+deb12u3 or later
- —upgrade to 1.0.19-3+deb11u2 or later
- —upgrade to 2.0.47 or later
- —upgrade to 3.0.36 or later
Is CVE-2024-27355 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 2.0.30-2+deb11u2
- from 0, < 3.0.19-1+deb12u3
- from 0, < 1.0.19-3+deb11u2
- >= 2.0.0, < 2.0.47
- >= 3.0.0, < 3.0.36
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |