CVE-2023-36810
Published: 30 June 2023
pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. This issue has been addressed in PR 808 and versions from 1.27.9 include this fix. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pypdf2 Launchpad, Ubuntu, Debian |
bionic |
Released
(1.26.0-2ubuntu0.1~esm2)
Available with Ubuntu Pro |
| focal |
Released
(1.26.0-3ubuntu1.20.04.2)
|
|
| jammy |
Released
(1.26.0-4ubuntu0.22.04.2)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Not vulnerable
(2.12.1-3)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(1.25.1-1ubuntu0.1~esm2)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |