CVE-2021-29421: XEE
First published: Thu Apr 01 2021(Updated: )
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/pikepdf | >=1.3.0<2.10.0 | 2.10.0 |
| pikepdf | >=1.3.0<=2.9.2 | |
| Red Hat Fedora | =32 | |
| Red Hat Fedora | =33 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-29421
- https://github.com/pikepdf/pikepdf/commit/3f38f73218e5e782fe411ccbb3b44a793c0b343a
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36P4HTLBJPO524WMQWW57N3QRF4RFSJG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QFLBBYGEDNXJ7FS6PIWTVI4T4BUPGEQ/
- https://github.com/advisories/GHSA-ccgm-3xw4-h5p8 (Advisory)
- https://github.com/pikepdf/pikepdf/blob/v2.10.0/docs/release_notes.rst#v2100
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QFLBBYGEDNXJ7FS6PIWTVI4T4BUPGEQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36P4HTLBJPO524WMQWW57N3QRF4RFSJG/
- https://github.com/pypa/advisory-database/tree/main/vulns/pikepdf/PYSEC-2021-34.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36P4HTLBJPO524WMQWW57N3QRF4RFSJG
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QFLBBYGEDNXJ7FS6PIWTVI4T4BUPGEQ
Frequently Asked Questions
What is the severity of CVE-2021-29421?
CVE-2021-29421 is classified as a medium severity vulnerability due to the potential for XML External Entity (XXE) attacks.
How do I fix CVE-2021-29421?
To fix CVE-2021-29421, upgrade the pikepdf package to version 2.10.0 or later.
Which versions of pikepdf are affected by CVE-2021-29421?
CVE-2021-29421 affects pikepdf versions from 1.3.0 to 2.9.2.
What kind of impact does CVE-2021-29421 have on applications?
CVE-2021-29421 can lead to potential data exfiltration and remote code execution due to the XXE vulnerability.
Is CVE-2021-29421 specific to any operating systems?
CVE-2021-29421 is particularly noted for its relevance in Fedora versions 32 and 33.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/weakness
- agent/severity
- agent/first-publish-date
- agent/description
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-ccgm-3xw4-h5p8
- alias/CVE-2021-29421
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/references
- agent/event
- collector/github-advisory
- agent/trending
- agent/source
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- agent/softwarecombine
- agent/tags
- package-manager/pip
- vendor/pikepdf project
- canonical/pikepdf
- version/pikepdf/1.3.0
- version/pikepdf/2.9.2
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/32
- version/red hat fedora/33