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Bug #9522

Bug #9520: libexif: Out-of-bounds heap read in exif_data_save_data_entry function (CVE-2017-7544)

[3.8] libexif: Out-of-bounds heap read in exif_data_save_data_entry function (CVE-2017-7544)

Added by Alicha CH 4 months ago. Updated 4 months ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Security
Target version:
Start date:
10/08/2018
Due date:
% Done:

100%

Estimated time:
Affected versions:
Security IDs:

Description

One heap-based out-of-bounds read vulnerabiltiy exists in libexif-0.6.21. When saving the data of an entry tagged with “EXIF_TAG_MAKER_NOTE” to
a buffer and copying the data of the exif entry, there is a mismatch between the computed read size of the entry data and the size of the allocated entry data.
The vulnerability can cause Denial-of-Service, even Information Disclosure (disclosing some critical heap chunk metadata, even other applications’ private data).

References:

https://sourceforge.net/p/libexif/bugs/130/
https://nvd.nist.gov/vuln/detail/CVE-2017-7544

Associated revisions

Revision a9d9f445 (diff)
Added by Leonardo Arena 4 months ago

main/libexif: security fix (CVE-2017-7544)

Fixes #9522

History

#1 Updated by Anonymous 4 months ago

  • Status changed from New to Resolved
  • % Done changed from 0 to 100

#2 Updated by Alicha CH 4 months ago

  • Project changed from Alpine Security to Alpine Linux
  • Category set to Security
  • Status changed from Resolved to Closed
  • Security IDs deleted (CVE-2017-7544)

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