Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2018-17057

Deserialization of Untrusted Data

Published: Sep 14, 2018 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-17057
CWEhttps://cwe.mitre.org/data/definitions/502.html

An issue was discovered in TCPDF before 6.2.22. Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

NameVendorStart VersionEnd Version
TcpdfTecnick*6.2.22 (excluding)
TcpdfUbuntubionic*
TcpdfUbuntucosmic*
TcpdfUbuntudisco*
TcpdfUbuntueoan*
TcpdfUbuntuesm-apps/bionic*
TcpdfUbuntuesm-apps/focal*
TcpdfUbuntuesm-apps/jammy*
TcpdfUbuntuesm-apps/xenial*
TcpdfUbuntuesm-infra-legacy/trusty*
TcpdfUbuntufocal*
TcpdfUbuntugroovy*
TcpdfUbuntuhirsute*
TcpdfUbuntuimpish*
TcpdfUbuntujammy*
TcpdfUbuntukinetic*
TcpdfUbuntutrusty*
TcpdfUbuntutrusty/esm*
TcpdfUbuntuupstream*
TcpdfUbuntuxenial*

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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