SB2017030622 - Multiple vulnerabilities in ImageMagick

Description

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference (CVE-ID: CVE-2017-6501)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in ImageMagick 6.9.7. A specially crafted xcf file could lead to a NULL pointer dereference. A remote attacker can perform a denial of service (DoS) attack.

2) Buffer overflow (CVE-ID: CVE-2017-6502)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An issue was discovered in ImageMagick 6.9.7. A specially crafted webp file could lead to a file-descriptor leak in libmagickcore (thus, a DoS).

Remediation

Install update from vendor's website.

References

• http://www.securityfocus.com/bid/96589
• https://bugs.debian.org/856881
• https://github.com/ImageMagick/ImageMagick/commit/d31fec57e9dfb0516deead2053a856e3c71e9751
• http://www.securityfocus.com/bid/96763
• https://github.com/ImageMagick/ImageMagick/commit/126c7c98ea788241922c30df4a5633ea692cf8df