PT-2024-9055 · Apache+5 · Apache Http Server+5
Steffen Froemer
·
Published
2022-05-10
·
Updated
2024-11-26
·
CVE-2021-47544
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to a TCP stream corruption for HTTP requests served by the apache web-server using a cifs mount-point and memory mapping the relevant file. The root cause is similar to the one addressed by a previous commit, where the nested access to the task page frag is caused by a page fault on the user-space memory buffer coming from the cifs file. The page fault handler performs an smb transaction on a different socket, inside the same process context, which modifies the page frag in use by the outer sendmsg call, corrupting the stream.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Apache Http Server
Astra Linux
Centos
Red Hat
Red Os
Suse