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



Published: 2019-05-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11040
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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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: #VU19278

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11040

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 exif_read_data() function when parsing EXIF data. 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

External links

http://git.alpinelinux.org/aports/commit/?id=653805b88f263b8936ba3560db05ece894f979f2
http://git.alpinelinux.org/aports/commit/?id=591b1611bea0124839b7a6627050f76ecfffc4a5
http://git.alpinelinux.org/aports/commit/?id=11cfe4dd1666223714141c2462305137c3eface9
http://git.alpinelinux.org/aports/commit/?id=14b8eeb01099ac825f24e7a21e634665d21c9de6
http://git.alpinelinux.org/aports/commit/?id=ea6d9823b57cb8f053d709f860da18ab5fa1c85e
http://git.alpinelinux.org/aports/commit/?id=925b90510d187dfad9d8ecc674f2477a4ebe7213


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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