Bug 2249053 (CVE-2023-6246) - CVE-2023-6246 glibc: heap-based buffer overflow in __vsyslog_internal()
Summary: CVE-2023-6246 glibc: heap-based buffer overflow in __vsyslog_internal()
Keywords:
Status: NEW
Alias: CVE-2023-6246
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2261987
Blocks: 2249054
TreeView+ depends on / blocked
 
Reported: 2023-11-10 13:17 UTC by Pedro Sampaio
Modified: 2024-02-28 06:19 UTC (History)
48 users (show)

Fixed In Version: glibc 2.39
Doc Type: If docs needed, set a value
Doc Text:
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
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Description Pedro Sampaio 2023-11-10 13:17:32 UTC
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.

Comment 1 Florian Weimer 2023-11-15 12:40:39 UTC
Isn't this a duplicate of bug 2123394?

Comment 2 Guilherme de Almeida Suckevicz 2023-11-17 18:28:59 UTC
Hi @fweimer, it's not the same issue. The comment#0 will be updated to have more details as soon as possible.

Comment 13 Guilherme de Almeida Suckevicz 2024-01-30 18:46:19 UTC
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 2261987]


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