CVE-2021-36978
Published: 20 July 2021
QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in Pl_ASCII85Decoder::write (called from Pl_AES_PDF::flush and Pl_AES_PDF::finish) when a certain downstream write fails.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qpdf Launchpad, Ubuntu, Debian |
focal |
Released
(9.1.1-1ubuntu0.1)
|
| hirsute |
Not vulnerable
(10.3.1-1)
|
|
| jammy |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(10.1.0-1)
|
|
| xenial |
Released
(8.0.2-3~16.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| bionic |
Released
(8.0.2-3ubuntu0.1)
|
|
| impish |
Not vulnerable
|
|
|
Patches: upstream: https://github.com/qpdf/qpdf/commit/dc92574c10f3e2516ec6445b88c5d584f40df4e5 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |