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Unrated severityNVD Advisory· Published Dec 8, 2020· Updated Aug 4, 2024

CVE-2020-27752

CVE-2020-27752

Description

A heap buffer overflow in ImageMagick's PopShortPixel function can be triggered by a crafted file, leading to a crash or potential data corruption.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

A heap buffer overflow in ImageMagick's PopShortPixel function can be triggered by a crafted file, leading to a crash or potential data corruption.

Vulnerability

A heap buffer overflow vulnerability exists in ImageMagick's PopShortPixel function in MagickCore/quantum-private.h. This flaw affects ImageMagick versions prior to 7.0.9-0 [1]. An attacker who submits a crafted file that is processed by ImageMagick can trigger the overflow [1]. The issue arises from an incomplete fix for CVE-2020-25664, allowing the same code path to be exploited after the patch was applied [1].

Exploitation

To exploit this vulnerability, an attacker only needs to provide a specially crafted file that ImageMagick processes. No authentication or special privileges are required, as the vulnerability can be triggered by any user or application that uses ImageMagick to process image files. The attacker must entice a user or service to process the malicious file, which could occur through various means such as email attachments, web uploads, or other file processing pipelines [1].

Impact

Successful exploitation of this heap buffer overflow can lead to an application crash (impacting availability) and potentially to data integrity issues [1]. The attacker may be able to corrupt memory, causing unpredictable behavior or denial of service. The impact is primarily on availability, with a secondary possibility of data integrity compromise [1].

Mitigation

The fix for this vulnerability is included in ImageMagick version 7.0.9-0 and later [1]. Users should upgrade to a patched version. Red Hat Enterprise Linux 5, 6, and 7 are out of support scope for this issue, and no fixes are provided for those platforms [1]. Fedora and EPEL users can expect updates through the normal channels [1]. There is no mention of this CVE on the CISA Known Exploited Vulnerabilities (KEV) catalog.

References
  1. heap-based buffer overflow in PopShortPixel in MagickCore/quantum-private.h

AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

43

Patches

0

No patches discovered yet.

Vulnerability mechanics

No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.

References

1

News mentions

0

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