Out-of-bounds read in libexif (Alpine package)

1) Out-of-bounds read

EUVDB-ID: #VU31847

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-2845

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in Integer overflow in the jpeg_data_load_data function in jpeg-data.c in libjpeg in exif 0.6.20. A remote attacker can perform a denial of service (buffer over-read and application crash) or obtain potentially sensitive information via a crafted JPEG file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libexif (Alpine package): 0.6.17-r0 - 0.6.21-r3

CPE2.3

• cpe:2.3:a:alpine:libexif_alpine_package:0.6.17-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:a:alpine:libexif_alpine_package:0.6.19-r0:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:a:alpine:libexif_alpine_package:0.6.20-r0:*:*:*:*:alpine_linux:*:2.1

External links

https://git.alpinelinux.org/aports/commit/?id=5dea23e076ed7123339473f529d74d8a9362e7c6
https://git.alpinelinux.org/aports/commit/?id=726529dabef044127d02831c4b26fa6c6fc9d5f5
https://git.alpinelinux.org/aports/commit/?id=7d1a8137daa5c1f5312ad957dc1857027b8999df
https://git.alpinelinux.org/aports/commit/?id=9959b863135bbaa1251dbddfa038c9256e155702
https://git.alpinelinux.org/aports/commit/?id=cc9c8ab403cd5dfa204be58c326dd98d0702d70c

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.