NULL pointer dereference in php7 (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-7062 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
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) NULL pointer dereference
EUVDB-ID: #VU25594
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-7062
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in session.c when handling file uploads. A remote attacker can send a specially crafted HTTP POST request to the affected application and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsphp7 (Alpine package): 7.2.5-r0 - 7.2.27-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=88b6599af086a66070987236b518ccb5d5247aae
http://git.alpinelinux.org/aports/commit/?id=9537881a1d26ea3b5f6ab04ca3065f14e2aef192
http://git.alpinelinux.org/aports/commit/?id=3d3e3c93ca209e263118a19505858c5c99dff6c8
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.
