Low [CVE-2026-70653] Information disclosure via heap-based buffer read overflow
This low-severity Red Hat Linux advisory covers CVE-2026-70653.
Android app · Google Play
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists.
A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. This issue is fixed in version 8.18.3.
A flaw was found in libvips. A remote attacker could exploit this by providing a specially crafted Radiance image.
This could lead to the disclosure of four bytes of adjacent heap data, potentially revealing sensitive image information. This issue is a local out-of-bounds read of four bytes of adjacent heap data in libvips when decoding a crafted Radiance HDR image.
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery.
Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-125.
- < 8.18.3
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- No mitigation is required for currently supported Red Hat products, which are not affected by this vulnerability. Users of libvips versions before 8.18.3 should upgrade to 8.18.3 or later. Until an upgrade can be applied, the Radiance loader can be disabled in application code: vips_operation_block_set("VipsForeignLoadRad", TRUE); Alternatively, set the VIPS_BLOCK_UNTRUSTED environment variable to disable all untrusted image decoders, including the Radiance loader. VIPS_BLOCK_UNTRUSTED is broader than blocking Radiance alone and may disable other loaders the application relies on.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.