Memory corruption in php7 (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-10549
CWE-ID CWE-119
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
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 low risk vulnerability.

1) Memory corruption

EUVDB-ID: #VU12258

Risk: Low

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-10549

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in exif_read_data() function due to an out-of-bounds read while processing crafted JPEG data. A remote attacker can supply a specially image file, trigger heap-based buffer overflow in exif_iif_add_value and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

php7 (Alpine package): 7.0.7-r0 - 7.1.17-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=da479a7adc9366cbc8f662b0412d7feea79fd9d6
https://git.alpinelinux.org/aports/commit/?id=d42b915a2245405763bb485ededfbdb01393f109
https://git.alpinelinux.org/aports/commit/?id=797bba4604043977849b0c0cf0b2ef7b21b1ea8c
https://git.alpinelinux.org/aports/commit/?id=38460e57f1f299ba2454aa7869c699f1ab333ca1


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. However, proof of concept for this vulnerability is available.



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