Buffer overflow in libpng (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU32378

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-8126

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Multiple buffer overflows in the (1) png_set_PLTE and (2) png_get_PLTE functions in libpng before 1.0.64, 1.1.x and 1.2.x before 1.2.54, 1.3.x and 1.4.x before 1.4.17, 1.5.x before 1.5.24, and 1.6.x before 1.6.19 allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libpng (Alpine package): 1.2.39-r0 - 1.6.16-r0

CPE2.3

• cpe:2.3:o:alpine:libpng_alpine_package:1.2.39-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:o:alpine:libpng_alpine_package:1.4.0-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:o:alpine:libpng_alpine_package:1.4.3-r0:*:*:*:*:alpine_linux:*:1.10

External links

https://git.alpinelinux.org/aports/commit/?id=752496ebf1b9e4df2c3b69736ed8cd8b66ff108c
https://git.alpinelinux.org/aports/commit/?id=50464346fd5dd099283409bfa2267381283ed036
https://git.alpinelinux.org/aports/commit/?id=3d2b0507b4e1ebda711f49cbd4ee950e7d290736
https://git.alpinelinux.org/aports/commit/?id=35bd1e624bdba46f60b876b1ffd14b7095783f58

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.