NULL pointer dereference in gd (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-14553 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
gd (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) NULL pointer dereference
EUVDB-ID: #VU26344
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-14553
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 within the gdImageClone() function in gd.c file in libgd. A remote attacker can trigger denial of service conditions via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).
MitigationInstall update from vendor's website.
Vulnerable software versionsgd (Alpine package): 2.2.1-r0 - 2.2.5-r3
gd (Alpine package):
External linkshttp://git.alpinelinux.org/aports/commit/?id=2a812850377ca7dcbe311355ac0ea61aeab8b64a
http://git.alpinelinux.org/aports/commit/?id=3deb517cec296a32e5b25f1a75a48c2026a44af4
http://git.alpinelinux.org/aports/commit/?id=b7a6616325748291eb409fbe35ebf1a7c7070558
http://git.alpinelinux.org/aports/commit/?id=bf12d0cce2f7c5041a183d56c53bfbc2bf890930
http://git.alpinelinux.org/aports/commit/?id=aad758e364da9a69d0d519b619cc6eb2c7d150f8
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.
