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Tracking
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| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-8454-1 | libheif vulnerabilities |
Wed, 20 May 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 20 May 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Struktur
Struktur libheif |
|
| Vendors & Products |
Struktur
Struktur libheif |
Wed, 20 May 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-120 | |
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Tue, 19 May 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and below contain a heap buffer overflow in MaskImageCodec::decode_mask_image(). When decoding a HEIF file containing a mask image (mski), the function copies the full iloc extent data into a pixel buffer using memcpy(dst, data.data(), data.size()). The copy length data.size() is determined by the iloc extent in the file (attacker-controlled), while the destination buffer is sized based on the declared image dimensions. Because no upper-bound check exists on the data length, a crafted file whose iloc extent exceeds the pixel buffer allocation overflows the heap. The vulnerable single-memcpy branch is reached when the mskC property specifies bits_per_pixel = 8 and the ispe property declares an even width ≥ 64 (so that stride == width), with no changes to default security limits or external codec plugins required. This issue has been fixed in version 1.22.0. | |
| Title | libheif has a heap buffer overflow in decode_mask_image() | |
| Weaknesses | CWE-122 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-30T02:42:32.225Z
Reserved: 2026-03-13T15:02:00.628Z
Link: CVE-2026-32741
Updated: 2026-05-20T14:37:42.429Z
Status : Deferred
Published: 2026-05-19T21:16:42.073
Modified: 2026-06-17T10:36:18.367
Link: CVE-2026-32741
OpenCVE Enrichment
Updated: 2026-05-20T10:00:04Z
Ubuntu USN