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🛡️ USN-7404-1 — php-phpseclib (CVE-2021-30130 +3 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

phpseclib vulnerabilities

It was discovered that phpseclib did not correctly handle RSA PKCS#1

v1.5 signature verification. An attacker could possibly use this issue to

bypass authentication. This issue only affected Ubuntu 20.04 LTS.

(CVE-2021-30130)

It was discovered that phpseclib did not correctly handle certain

characters in certain TLS fields, which could lead to name confusion.

An attacker could possibly use this issue to bypass authentication.

(CVE-2023-52892)

It was discovered that phpseclib incorrectly limited the size of prime

numbers generated by isPrime. An attacker could possibly use this issue

to cause a denial of service. (CVE-2024-27354)

It was discovered that phpseclib did not correctly handle processing the

ASN.1 object identifier of a certificate. An attacker could possibly use

this issue to cause a denial of service. This issue only affected

Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-27355)

Affected software

USN-7404-1 is recorded against 3 packages.

  • php-phpseclib (fixed in 2.0.36-1ubuntu0.1~esm2)
  • php-phpseclib3 (fixed in 3.0.13-1ubuntu0.1~esm1)
  • phpseclib (fixed in 1.0.20-1ubuntu0.1~esm1)

Timeline and source

Published on 2 April 2025 and last revised on 25 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Other advisories for this package

php-phpseclib has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-04-02
Updated 2026-08-20
Modified 2026-06-25
Fix URL N/A

Affected Packages

Software From version Fixed in
php-phpseclib — 2.0.36-1ubuntu0.1~esm2
php-phpseclib3 — 3.0.13-1ubuntu0.1~esm1
phpseclib — 1.0.20-1ubuntu0.1~esm1

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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