Link following in tesseract-ocr tesseract

1) Link following

EUVDB-ID: #VU35068

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2011-1136

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local authenticated user to manipulate data.

In tesseract 2.03 and 2.04, an attacker can rewrite an arbitrary user file by guessing the PID and creating a link to the user's file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tesseract: 2.03 - 2.04

Debian Linux: 2.03 - 9.0

CPE2.3

• cpe:2.3:a:tesseract-ocr:tesseract:2.03:*:*:*:*:*:*:*
• cpe:2.3:a:tesseract-ocr:tesseract:2.04:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:2.03:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:2.04:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

External links

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=612032
https://bugs.launchpad.net/ubuntu/+source/tesseract/+bug/607297
https://security-tracker.debian.org/tracker/CVE-2011-1136

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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