Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / exiv2/PYSEC-2017-140
Advisory ID pypa/exiv2/PYSEC-2017-140
Aliases CVE-2017-17669
PYSEC-2017-140
Summary There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 5.5 https://github.com/pypa/advisory-database/blob/main/vulns/exiv2/PYSEC-2017-140.yaml
Reference id Reference type URL
https://github.com/Exiv2/exiv2/issues/187
https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
https://usn.ubuntu.com/3852-1/
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/blob/main/vulns/exiv2/PYSEC-2017-140.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.