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Details of issue NIXPKGS-2026-1174

NIXPKGS-2026-1174
published 2 months, 1 week ago
Permalink CVE-2026-40333
6.1 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Physical (P)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Physical (P)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 2 months, 1 week ago by @LeSuisse Activity log
  • Created suggestion 2 months, 1 week ago
  • @LeSuisse accepted 2 months, 1 week ago
  • @LeSuisse published on GitHub 2 months, 1 week ago
libgphoto2 has OOB read in ptp_unpack_EOS_ImageFormat() and ptp_unpack_EOS_CustomFuncEx() due to missing length parameter in ptp-pack.c

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.

Affected products

libgphoto2
  • ==<= 2.5.33

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