Bug 2254396 (CVE-2023-6780) - CVE-2023-6780 glibc: integer overflow in __vsyslog_internal()
Summary: CVE-2023-6780 glibc: integer overflow in __vsyslog_internal()
Keywords:
Status: NEW
Alias: CVE-2023-6780
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2261989
Blocks: 2249054
TreeView+ depends on / blocked
 
Reported: 2023-12-13 18:29 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-04-30 10:44 UTC (History)
47 users (show)

Fixed In Version: glibc 2.39
Doc Type: If docs needed, set a value
Doc Text:
An integer 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 these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
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Description Guilherme de Almeida Suckevicz 2023-12-13 18:29:10 UTC 
An integer 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 these functions are called with a very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
Comment 3 Guilherme de Almeida Suckevicz 2024-01-30 18:47:07 UTC 
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 2261989]
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