moderate: freetype/libX11 security update
moderate
An update for freetype/libX11 is now available for NewStart CGSL MAIN 6.06.
NewStart Security has rated this update as having a security impact of moderate. A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.
freetype:
libX11:
Security Fix(es):
freetype: A heap buffer overflow flaw was found in Freetype’s sfnt_init_face() function in the sfobjs.c file. The vulnerability occurs when creating a face with a strange file and invalid index. This flaw allows an attacker to read a small amount of memory, causing the application to crash.(CVE-2022-27404)
freetype: bugfix
libX11: A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption.(CVE-2023-3138)
libX11: bugfix
Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
http://security.gd-linux.com/how_to_apply_patch.html
Remember the build tag is 6.06.07B7.
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