SB2026080373 - openEuler 22.03 LTS SP4 update for python-pillow

Description

This security bulletin contains information about 6 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2026-54058)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to disclose sensitive information or cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the PyImaging_MapBuffer mmap path used with the McIdas AREA plugin when processing a crafted image file opened from a filename. A remote attacker can supply a specially crafted McIdas AREA image with an undersized row stride to disclose sensitive information or cause a denial of service.

The issue is reachable when Pillow memory-maps an uncompressed raw tile in a mode listed in Image._MAPMODES, and pixel access operations such as Image.tobytes(), getpixel, convert, or save trigger the read.

2) Out-of-bounds read (CVE-ID: CVE-2026-59198)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in the TGA RLE encoder when saving a mode "1" image through the public save API with TGA RLE compression. A remote attacker can save a specially crafted image to disclose sensitive information.

The issue can serialize adjacent process heap bytes into the generated TGA file, and a maximum-width single-row image can expose nearly the full adjacent heap window.

3) Heap-based buffer overflow (CVE-ID: CVE-2026-59199)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a heap-based buffer overflow in Pillow Image.paste(), Image.crop(), and Image.alpha_composite() when processing attacker-controlled image coordinates near signed 32-bit integer limits. A remote attacker can supply crafted coordinate values to cause a denial of service.

The direct Image.paste() path can copy attacker-controlled source pixel data into the out-of-bounds write, and the issue is reachable through documented public APIs without malformed image files.

4) Heap-based buffer overflow (CVE-ID: CVE-2026-59205)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a heap-based buffer overflow in ImageCmsTransform.apply() when processing a caller-supplied output image whose mode does not match the transform's declared output mode. A remote attacker can supply a crafted output image object to cause a denial of service.

The issue is reachable through Pillow's public ImageCms API, and the source image pixels can influence the bytes written out of bounds.

5) Path traversal (CVE-ID: CVE-2022-22815)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in path_getbbox() function in path.c. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

6) Out-of-bounds read (CVE-ID: CVE-2022-22816)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to buffer over-read during initialization of ImagePath.Path in path_getbbox() function in path.c. A remote attacker can pass a specially crafted file to the affected library and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3188