MGASA-2019-0073 - Updated libgd packages fix security vulnerability

Publication date: 13 Feb 2019
URL: https://advisories.mageia.org/MGASA-2019-0073.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2019-6977,
     CVE-2019-6978

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka
LibGD) 2.2.5 has a heap-based buffer overflow. This can be exploited by an
attacker who is able to trigger calls to the function with crafted image
data (CVE-2019-6977).

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
(CVE-2019-6978).

References:
- https://bugs.mageia.org/show_bug.cgi?id=24336
- https://www.debian.org/security/2019/dsa-4384
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6977
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6978

SRPMS:
- 6/core/libgd-2.2.5-2.3.mga6

Mageia 2019-0073: libgd security update

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5 has a heap-based buffer overflow

Summary

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5 has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger calls to the function with crafted image data (CVE-2019-6977).
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 (CVE-2019-6978).

References

- https://bugs.mageia.org/show_bug.cgi?id=24336

- https://www.debian.org/security/2019/dsa-4384

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6977

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6978

Resolution

MGASA-2019-0073 - Updated libgd packages fix security vulnerability

SRPMS

- 6/core/libgd-2.2.5-2.3.mga6

Severity
Publication date: 13 Feb 2019
URL: https://advisories.mageia.org/MGASA-2019-0073.html
Type: security
CVE: CVE-2019-6977, CVE-2019-6978

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