PT-2017-17744 · Dropbox · Dropbox Lepton

Chunibalon · Published 2017-04-05 · Updated 2017-04-12 · CVE-2017-7448

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Dropbox Lepton version 1.2.1

Description The issue allows remote attackers to cause a denial of service, resulting in a divide-by-zero error and application crash, via a malformed JPEG image. This is due to a problem in the allocate channel framebuffer function in uncompressed components.hh.

Recommendations For Dropbox Lepton version 1.2.1, as a temporary workaround, consider restricting the processing of JPEG images until a patch is available. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

CVE-2017-7448

Affected Products

Dropbox Lepton

References · 8

• 🔥 https://github.com/dropbox/lepton/issues/86 · Exploit
• https://github.com/dropbox/lepton/commit/7789d99ac156adfd7bbf66e7824bd3e948a74cf7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-7448 · Security Note
• https://osv.dev/vulnerability/CVE-2017-7448 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-7448 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-7448 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7448 · Vendor Advisory
• http://securityfocus.com/bid/97490 · Note