Out-of-bounds write in PDFResurrect

1) Out-of-bounds write

EUVDB-ID: #VU30825

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14934

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

An issue was discovered in PDFResurrect before 0.18. pdf_load_pages_kids in pdf.c doesn't validate a certain size value, which leads to a malloc failure and out-of-bounds write.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PDFResurrect: 0.12 - 0.17

External links

http://github.com/enferex/pdfresurrect/commit/0c4120fffa3dffe97b95c486a120eded82afe8a6
http://github.com/enferex/pdfresurrect/compare/v0.17...v0.18
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBYXYU2VSDJ3NAL54IW2KYD3TZSR33M/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LXN6W5QTNQJ2LFDCQWKYSMMZ3NPUWP3U/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y243C2IFMRFQWHV62JCSHTMQGDDCICNF/

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.