Buffer overflow in pngpread.c in libpng before 1.2.44 and 1.4.x before 1.4.3, as used in progressive applications, might allow remote attack

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• apple iphone os2.0 and later · up to 4.1 inclusive
• apple itunesbefore 10.2
• apple mac os x10.6.0 and later · before 10.6.4
• apple mac os x server10.6.0 and later · before 10.6.4
• apple safaribefore 5.0.4
• canonical ubuntu linux10.04
• canonical ubuntu linux6.06
• canonical ubuntu linux8.04
• canonical ubuntu linux9.04
• canonical ubuntu linux9.10
• debian debian linux5.0
• fedoraproject fedora12
• fedoraproject fedora13
• google chromebefore 5.0.375.99
• libpng libpng1.4.0 and later · before 1.4.3
• libpng libpngbefore 1.2.44
• mozilla firefoxbefore 3.5.11
• mozilla firefox3.5.12 and later · before 3.6.7
• mozilla seamonkeybefore 2.0.6
• mozilla thunderbird3.0.7 and later · before 3.1.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2017-12652libpng before 1.6.32 does not properly check the length of chunks against the user limit.
  40Plan
• CVE-2015-8540Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1
  37Monitor
• CVE-2018-14550An issue has been found in third-party PNM decoding associated with libpng 1.6.35.
  36Monitor
• CVE-2015-0973Buffer overflow in the png_read_IDAT_data function in pngrutil.c in libpng before 1.5.21 and 1.6.x before 1.6.16 allows context-dependent at
  36Monitor
• CVE-2014-9495Heap-based buffer overflow in the png_combine_row function in libpng before 1.5.21 and 1.6.x before 1.6.16, when running on 64-bit systems,
  36Monitor
• CVE-2011-2692The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 do
  36Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.