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

1) Out-of-bounds read

EUVDB-ID: #VU39075

Risk: High

CVSSv3.1: 7.7 [AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8787

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 The PoDoFo::PdfXRefStreamParserObject::ReadXRefStreamEntry function in base/PdfXRefStreamParserObject.cpp:224 in PoDoFo 0.9.5. A remote attacker can perform a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted PDF file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

podofo (Alpine package): 0.9.5-r0 - 0.9.6-r2

CPE2.3

• cpe:2.3:o:alpine:podofo_alpine_package:0.9.5-r1:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:podofo_alpine_package:0.9.5-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:podofo_alpine_package:0.9.6-r2:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=ee0f0c39b80c484343973f2cbc7b0b2cdc0f9532

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.