Vulnerability CVE-2019-6978
Published: 2019-01-28

Description:
The GD Graphics Library (aka LibGD) 2.2.5 has a double free in the gdImage*Ptr() functions in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c. NOTE: PHP is unaffected.

Type:

CWE-415

 (Double Free)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libgd -> Libgd 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00031.html
https://github.com/libgd/libgd/commit/553702980ae89c83f2d6e254d62cf82e204956d0
https://github.com/libgd/libgd/issues/492
https://github.com/php/php-src/commit/089f7c0bc28d399b0420aa6ef058e4c1c120b2ae
https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html
https://security.gentoo.org/glsa/201903-18
https://usn.ubuntu.com/3900-1/
https://www.debian.org/security/2019/dsa-4384
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