REDHAT-BUG-2024637: Buffer Overflow
First published: Thu Nov 18 2021(Updated: )
A flaw was found in glibc. The getcwd() function is affected by an off-by-one buffer overflow and underflow that may lead to memory corruption when the size of the buffer is exactly 1 byte.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2039676
- https://sourceware.org/bugzilla/show_bug.cgi?id=28769
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
- https://access.redhat.com/errata/RHSA-2022:0896
- https://access.redhat.com/security/cve/cve-2021-3999
- https://bugzilla.redhat.com/show_bug.cgi?id=2024637
Frequently Asked Questions
What is the severity of REDHAT-BUG-2024637?
The severity of REDHAT-BUG-2024637 is moderate due to a potential for memory corruption.
How do I fix REDHAT-BUG-2024637?
To fix REDHAT-BUG-2024637, update the GNU glibc to the latest patched version provided by your distribution.
What systems are affected by REDHAT-BUG-2024637?
REDHAT-BUG-2024637 affects systems using GNU glibc where the getcwd() function is utilized.
Can REDHAT-BUG-2024637 be exploited remotely?
There is no indication that REDHAT-BUG-2024637 can be exploited remotely, as it primarily affects local memory operations.
What are the implications of REDHAT-BUG-2024637?
The implications of REDHAT-BUG-2024637 include potential instability or crashes in applications that rely on the getcwd() function.
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