REDHAT-BUG-2149722: Buffer Overflow
First published: Wed Nov 30 2022(Updated: )
A Heap Buffer Overflow issue takes place at from_header() in list.c in the tar application. The issue occurs when attempting to read files with old V7 tar format with an especially crafted checksum. As a result, an invalid memory read that leads to a conditional jump or move operation on uninitialised memory values takes place. Reference: <a href="https://savannah.gnu.org/bugs/?62387">https://savannah.gnu.org/bugs/?62387</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ubuntu tar |
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Reference Links
- https://savannah.gnu.org/bugs/?62387
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2149724
- https://savannah.gnu.org/patch/?10307
- https://access.redhat.com/errata/RHSA-2023:0842
- https://access.redhat.com/errata/RHSA-2023:0959
- https://access.redhat.com/security/cve/cve-2022-48303
- https://access.redhat.com/security/cve/CVE-2022-48303
- https://git.savannah.gnu.org/cgit/tar.git/commit/?id=3da78400eafcccb97e2f2fd4b227ea40d794ede8
- https://gitlab.com/redhat/centos-stream/rpms/tar/-/commit/3f1e688b3212d1911e2de8ac97918ab6d432a174
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2149722#c10
- https://www.gnu.org/software/tar/manual/html_node/Standard.html
- https://access.redhat.com/errata/RHSA-2023:5610
- https://bugzilla.redhat.com/show_bug.cgi?id=2149722
Frequently Asked Questions
What is the severity of REDHAT-BUG-2149722?
The severity of REDHAT-BUG-2149722 is high due to the potential for a heap buffer overflow that can lead to security vulnerabilities.
How do I fix REDHAT-BUG-2149722?
To fix REDHAT-BUG-2149722, users should upgrade to the latest version of GNU tar where the vulnerability has been patched.
What causes the vulnerability in REDHAT-BUG-2149722?
The vulnerability in REDHAT-BUG-2149722 is caused by a heap buffer overflow that occurs in the from_header() function when processing specifically crafted files in old V7 tar format.
Which software is affected by REDHAT-BUG-2149722?
The software affected by REDHAT-BUG-2149722 is GNU tar.
What type of vulnerability is REDHAT-BUG-2149722?
REDHAT-BUG-2149722 is classified as a heap buffer overflow vulnerability.
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