NULL pointer dereference in libgsf (Alpine package)

1) NULL pointer dereference

EUVDB-ID: #VU32194

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-9888

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted TAR file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Tivoli Storage Manager: 6.2.0.0

libgsf (Alpine package): 20031106.1 - 20040801ubuntu16

libgsf (Alpine package): 2.1.0-1 - 2.1.26.dfsg1-13ubuntu0.1

libgsf (Alpine package): 1.4.7-1ubuntu4 - 1.4.7-1

libgsf (Alpine package): 7.0.6-1 - 7.0.7-1

libgsf (Alpine package): 1.0

libgsf (Alpine package): 7.0.5730

libgsf (Alpine package): 4.77

libgsf (Alpine package): 0.2.1

libgsf (Alpine package): 3.0

libgsf (Alpine package):

libgsf (Alpine package): before 1.14.41-r0

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_tivoli_storage_manager:6.2.0.0:*:*:*:*:*:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:20031106.1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:20031109:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:20040421:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:2.1.0-1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:2.1.26.dfsg1-13ubuntu0.1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:1.4.7-1ubuntu4:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:1.4.7-1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:7.0.6-1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:7.0.7-1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:1.0:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:7.0.5730:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:4.77:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:0.2.1:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:3.0:*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package::*:*:*:*:alpine_linux:*:*
• cpe:2.3:o:alpine:libgsf_alpine_package:*:*:*:*:*:alpine_linux:*:3.2

External links

https://git.alpinelinux.org/aports/commit/?id=5904cad53e00351cf3117c4b73d9c5286751cb11
https://git.alpinelinux.org/aports/commit/?id=637edf8f0bd75fd53b869585de8710a26b7c2c8f
https://git.alpinelinux.org/aports/commit/?id=49f63fbc7199bbb60746de6712dc9c5700eed36e
https://git.alpinelinux.org/aports/commit/?id=a2b2b24f4753ad98f784bce159efefd0003e62be
https://git.alpinelinux.org/aports/commit/?id=c3eef0fcda3f6f609adcdbc4d9e8a8db28c87e95

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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