Alerts This Week
Warning Icon 1 631
Alerts This Week
Warning Icon 1 631

Stay Secure with the Latest Linux Advisories

Debianlts Large Esm H800
Debian LTS

Debian LTS openssl Important Use-After-Free NULL Pointer Issues DLA-4624-1

Calendar White Jun 09, 2026
Important
Ubuntu Large Esm H900
Ubuntu

Ubuntu 20.04 alsa-lib Important Denial of Service Fix USN-8044-2

Calendar White Jun 09, 2026
Important
Ubuntu Large Esm H900
Ubuntu

Ubuntu 26.04 LTS node-shell-quote Important Denial of Service CVE-2026-9277

Calendar White Jun 09, 2026
Important
Mageia Large Esm H800
Mageia

Mageia 9 Suricata Critical Performance Security Issues MGASA-2026-0181

Calendar White Jun 09, 2026
Critical
Mageia Large Esm H900
Mageia

Mageia 9 PackageKit Important TOCTOU Race Escalation CVE-2026-41651

Calendar White Jun 09, 2026
Important
Mageia Large Esm H900
Mageia

Mageia 9 Unbound Critical Remote Code Execution Advisory 2026-0034

Calendar White Jun 09, 2026
Critical
Ubuntu Large Esm H800
Ubuntu

Ubuntu 26.04 LTS Netatalk Multiple Security Issues USN-8395-1

Calendar White Jun 09, 2026
Important
Fedora Large Esm H900
Fedora

Fedora 43 mingw-objfw 1.5.5 Update Security Fix FEDORA-2026-de23fedf3e

Calendar White Jun 08, 2026
Fedora Large Esm H900
Fedora

Fedora 43 objfw Important Update 1.5.5 Bug Fixes June 2026

Calendar White Jun 08, 2026
Important
Filter Icon Refine advisories
X Clear Filters
X Clear Filters
View More

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Community Poll

More Polls

What got you started with Linux?

No answer selected. Please try again.
Please select either existing option or enter your own, however not both.
Please select minimum {0} answer(s).
Please select maximum {0} answer(s).
/main-polls/150-what-got-you-started-with-linux?task=poll.vote&format=json
150
radio
0
[{"id":483,"title":"Self-taught through trial and error","votes":549,"type":"x","order":1,"pct":78.54,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.29,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.86,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.3,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
bottom 200
Loading...

Explore Latest Linux Security advisories

We found -4 articles for you...
172
Ls Advisories Ubuntu Esm H240
Price Tag 1security advisorydenial of servicesystem update

Ubuntu 22.04 LTS: USN-6280-1 Moderate: PyPDF2 Denial Of Service

PyPDF2 could be made to crash if it opened a specially crafted file.. ========================================================================== Ubuntu Security Notice USN-6280-1 August 10, 2023 pypdf2 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: PyPDF2 could be made to crash if it opened a specially crafted file. Software Description: - pypdf2: Pure-Python library built as a PDF toolkit (Python 3) Details: It was discovered that PyPDF2 incorrectly handled PDF files with certain markers. If a user or automated system were tricked into processing a specially crafted file, an attacker could possibly use this issue to consume system resources, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: python3-pypdf2 1.26.0-4ubuntu0.22.04.2 Ubuntu 20.04 LTS: python-pypdf2 1.26.0-3ubuntu1.20.04.2 python3-pypdf2 1.26.0-3ubuntu1.20.04.2 Ubuntu 18.04 LTS (Available with Ubuntu Pro): python-pypdf2 1.26.0-2ubuntu0.1~esm2 python3-pypdf2 1.26.0-2ubuntu0.1~esm2 Ubuntu 16.04 LTS (Available with Ubuntu Pro): python-pypdf2 1.25.1-1ubuntu0.1~esm2 python3-pypdf2 1.25.1-1ubuntu0.1~esm2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6280-1 CVE-2023-36810 Package Information: https://launchpad.net/ubuntu/+source/pypdf2/1.26.0-4ubuntu0.22.04.2 https://launchpad.net/ubuntu/+source/pypdf2/1.26.0-3ubuntu1.20.04.2 . Ubuntu 22.04 to 16.04 LTS vulnerable due to pypdf2 exploitfrom malicious files. Urgent system patches needed.. pypdf2, Denial Of Service, Ubuntu Update. . LinuxSecurity.com Team

Calendar 2 Aug 14, 2023 Ubuntu
197
Ls Advisories Deblts Esm H240
Price Tag 1security advisorydebianruntime issue

Debian 10: DLA-3497-1 Moderate: PyPDF2 Runtime Issue Resolution

Quadratic runtime with malformed PDFs missing xref marker has been fixed in PyPDF2, a pure Python PDF library. For Debian 10 buster, this problem has been fixed in version . - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3497-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Adrian Bunk July 14, 2023 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : pypdf2 Version : 1.26.0-2+deb10u2 CVE ID : CVE-2023-36810 Quadratic runtime with malformed PDFs missing xref marker has been fixed in PyPDF2, a pure Python PDF library. For Debian 10 buster, this problem has been fixed in version 1.26.0-2+deb10u2. We recommend that you upgrade your pypdf2 packages. For the detailed security status of pypdf2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/pypdf2 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Debian long-term support patches resolve exponential time complexity bug in PyPDF2 related to corrupt PDF files. Users are advised to upgrade for improved security.. Debian 10, security advisory, PyPDF2 update, runtime fix. . LinuxSecurity.com Team

Calendar 2 Jul 14, 2023 Debian LTS
Banner 2 1028x280 1708121730 1 1771599631
172
Ls Advisories Ubuntu Esm H240
Price Tag 1security advisorydenial of servicecritical

Ubuntu 22.04 LTS USN-6176-1 Critical PyPDF2 Denial Of Service

PyPDF2 could be made to crash if it opened a specially crafted file.. =========================================================================Ubuntu Security Notice USN-6176-1 June 19, 2023 pypdf2 vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: PyPDF2 could be made to crash if it opened a specially crafted file. Software Description: - pypdf2: Pure-Python library built as a PDF toolkit (Python 3) Details: It was discovered that PyPDF2 incorrectly handled certain PDF files. If a user or automated system were tricked into processing a specially crafted file, an attacker could possibly use this issue to consume system resources, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: python3-pypdf2 1.26.0-4ubuntu0.22.04.1 Ubuntu 20.04 LTS: python-pypdf2 1.26.0-3ubuntu1.20.04.1 python3-pypdf2 1.26.0-3ubuntu1.20.04.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): python-pypdf2 1.26.0-2ubuntu0.1~esm1 python3-pypdf2 1.26.0-2ubuntu0.1~esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): python-pypdf2 1.25.1-1ubuntu0.1~esm1 python3-pypdf2 1.25.1-1ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6176-1 CVE-2022-24859 Package Information: https://launchpad.net/ubuntu/+source/pypdf2/1.26.0-4ubuntu0.22.04.1 https://launchpad.net/ubuntu/+source/pypdf2/1.26.0-3ubuntu1.20.04.1 . The PyPDF2 library may experience crashes when processing specially designed files.To prevent this denial of service vulnerability, ensure your Ubuntu system is fully updated.. pypdf2 Denial Of Service, Ubuntu Security Advisory, Critical Security Flaw. . Severity: Critical. LinuxSecurity.com Team

Calendar 2 Jun 19, 2023 •Critical Ubuntu
197
Ls Advisories Deblts Esm H240
Price Tag 1security advisorydebianhigh

Debian 10 DLA-3451-1 High Risk: PyPDF2 Infinite Loop Issue

Sebastian Krause discovered that manipulated inline images can force PyPDF2, a pure Python PDF library, into an infinite loop, if a maliciously crafted PDF file is processed. . -------------------------------------------------------------------------Debian LTS Advisory DLA-3451-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Markus Koschany June 09, 2023 https://wiki.debian.org/LTS -------------------------------------------------------------------------Package : pypdf2 Version : 1.26.0-2+deb10u1 CVE ID : CVE-2022-24859 Debian Bug : 1009879 Sebastian Krause discovered that manipulated inline images can force PyPDF2, a pure Python PDF library, into an infinite loop, if a maliciously crafted PDF file is processed. For Debian 10 buster, this problem has been fixed in version 1.26.0-2+deb10u1. We recommend that you upgrade your pypdf2 packages. For the detailed security status of pypdf2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/pypdf2 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Manipulated PDF documents may leverage embedded images to trigger a recursive loop in PyPDF2. Immediate action advised.. Debian Security Update, PyPDF2 Exploit, Inline Image Risk. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Jun 09, 2023 •Important Debian LTS
Banner 2 1028x280 1708121730 1 1771599631
197
Ls Advisories Deblts Esm H240
Price Tag 1security advisorymoderatesecurity update

Debian 9 DLA-3039-1 Moderate: PyPDF2 Infinite Loop Threat

Sebastian Krause discovered that manipulated inline images can force PyPDF2, a pure Python PDF library, into an infinite loop, if a maliciously crafted PDF file is processed. . -------------------------------------------------------------------------Debian LTS Advisory DLA-3039-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Markus Koschany June 03, 2022 https://wiki.debian.org/LTS -------------------------------------------------------------------------Package : pypdf2 Version : 1.26.0-2+deb9u1 CVE ID : CVE-2022-24859 Debian Bug : 1009879 Sebastian Krause discovered that manipulated inline images can force PyPDF2, a pure Python PDF library, into an infinite loop, if a maliciously crafted PDF file is processed. For Debian 9 stretch, this problem has been fixed in version 1.26.0-2+deb9u1. We recommend that you upgrade your pypdf2 packages. For the detailed security status of pypdf2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/pypdf2 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Debian LTS security patch DLA-3040-1 addresses a vulnerability in pypdf3 that leads to denial of service when processing harmful PDF documents.. pypdf2 update, Python package security, Debian security update. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Jun 03, 2022 •Important Debian LTS
News Add Esm H240

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Community Poll

More Polls

What got you started with Linux?

No answer selected. Please try again.
Please select either existing option or enter your own, however not both.
Please select minimum {0} answer(s).
Please select maximum {0} answer(s).
/main-polls/150-what-got-you-started-with-linux?task=poll.vote&format=json
150
radio
0
[{"id":483,"title":"Self-taught through trial and error","votes":549,"type":"x","order":1,"pct":78.54,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.29,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.86,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.3,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
bottom 200

Search Topics

Your message here