CVE-2023-36464

Katalog CVE

CVSS 5.5 · Medium EPSS 0,35%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada pypdf project pypdf, pypdf2 project pypdf2. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.

Rincian

Terbit di NVD

27 Juni 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,35% peluang dieksploitasi; lebih tinggi dari 27,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/py-pdf/pypdf/pull/1828 patch
• https://github.com/py-pdf/pypdf/pull/969 issue tracking · patch
• https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8 exploit · patch