Out-of-bounds read in php7 (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11038
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 php7 (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU21274

Risk: Medium

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

CVE-ID: CVE-2019-11038

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD). A remote attacker can create a specially crafted image, pass it to the affected application, trigger out-of-bounds read error and read contents of memory on the system.



Mitigation

Install update from vendor's website.

Vulnerable software versions

php7 (Alpine package): 7.1.30-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=b7a6616325748291eb409fbe35ebf1a7c7070558
https://git.alpinelinux.org/aports/commit/?id=2a812850377ca7dcbe311355ac0ea61aeab8b64a
https://git.alpinelinux.org/aports/commit/?id=3deb517cec296a32e5b25f1a75a48c2026a44af4
https://git.alpinelinux.org/aports/commit/?id=bf12d0cce2f7c5041a183d56c53bfbc2bf890930
https://git.alpinelinux.org/aports/commit/?id=aad758e364da9a69d0d519b619cc6eb2c7d150f8
https://git.alpinelinux.org/aports/commit/?id=653805b88f263b8936ba3560db05ece894f979f2


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.



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