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Python CVE-2025-48379

| EUVDEUVD-2025-19662 HIGH
Heap-based Buffer Overflow (CWE-122)
2025-07-01 security-advisories@github.com GHSA-xg8h-j46f-w952
Heap Overflow Buffer Overflow Python Ubuntu Debian Pillow Red Hat Suse
7.1
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
7.1 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Ubuntu
MEDIUM
qualitative
SUSE
HIGH
qualitative
Red Hat
7.1 HIGH
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

5
EUVD ID Assigned
Mar 16, 2026 - 01:42 euvd
EUVD-2025-19662
Analysis Generated
Mar 16, 2026 - 01:42 vuln.today
Patch released
Mar 16, 2026 - 01:42 nvd
Patch available
PoC Detected
Oct 15, 2025 - 20:03 vuln.today
Public exploit code
CVE Published
Jul 01, 2025 - 19:15 nvd
HIGH 7.1

DescriptionGitHub Advisory

Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a sufficiently large (>64k encoded with default settings) image in the DDS format due to writing into a buffer without checking for available space. This only affects users who save untrusted data as a compressed DDS image. This issue has been patched in version 11.3.0.

Analysis

Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a sufficiently large (>64k encoded with default settings) image in the DDS format due to writing into a buffer without checking for available space. This only affects users who save untrusted data as a compressed DDS image. This issue has been patched in version 11.3.0.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Heap-based Buffer Overflow (CWE-122).

RemediationAI

A vendor patch is available — apply it immediately. Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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Same weakness CWE-122 – Heap-based Buffer Overflow

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Same technique Heap Overflow

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Vendor StatusVendor

Ubuntu

Priority: Medium
pillow
Release Status Version
upstream not-affected debian: Vulnerable code not present
bionic not-affected code not present
focal not-affected code not present
jammy not-affected code not present
noble not-affected code not present
oracular not-affected code not present
plucky not-affected code not present
trusty not-affected code not present
xenial not-affected code not present
pillow-python2
Release Status Version
jammy DNE -
noble DNE -
oracular DNE -
plucky DNE -
upstream needs-triage -
focal not-affected code not present

Debian

pillow
Release Status Fixed Version Urgency
bullseye fixed 8.1.2+dfsg-0.3+deb11u2 -
bullseye (security) fixed 8.1.2+dfsg-0.3+deb11u3 -
bookworm, bookworm (security) fixed 9.4.0-1.1+deb12u1 -
trixie (security), trixie fixed 11.1.0-5+deb13u1 -
forky, sid fixed 12.1.1-1 -
(unstable) not-affected - -

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Server 16.0 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed

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CVE-2025-48379 vulnerability details – vuln.today
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