PT-2019-4531 · Gif2Apng+2 · Gif2Apng+2

Published 2019-10-09 · Updated 2022-03-31 · CVE-2019-17371

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions gif2png version 2.5.13 libpng (affected versions not specified)

Description The issue is related to a memory leak in the writefile function and concerns the png malloc warn and png create info struct functions of the libpng library. This is due to a resource not being released after its valid lifetime has expired. Exploitation of this issue may allow a remote attacker to cause a denial of service.

Recommendations For gif2png version 2.5.13, update to a version that fixes the memory leak in the writefile function. For libpng, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Release of Resource after Effective Lifetime

Memory Leak

Weakness Enumeration

CWE-772

CWE-401

Related Identifiers

ALT-PU-2021-1096

ALT-PU-2021-1133

BDU:2020-00562

CVE-2019-17371

Affected Products

Alt Linux

Gif2Apng

Libpng

References · 10

• 🔥 https://github.com/glennrp/libpng/issues/307 · Exploit
• 🔥 https://github.com/glennrp/libpng/issues/307#issuecomment-544779431 · Exploit
• 🔥 https://gitlab.com/esr/gif2png/issues/8 · Exploit
• https://bdu.fstec.ru/vul/2020-00562 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-17371 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-17371 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-17371 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-17371 · Security Note
• https://ubuntu.com/security/CVE-2019-17371 · Vendor Advisory
• https://altsp.su/obnovleniya-bezopasnosti · Note