CVE-2022-2867: Integer Underflow
First published: Tue Aug 16 2022(Updated: )
In libtiff's tiffcrop utility, a uint32_t underflow results in an out-of-bounds read and write in extractContigSamples8bits and extractContigSamplesShifted32bits of tiffcrop.c. References: <a href="https://gitlab.com/libtiff/libtiff/-/issues/350">https://gitlab.com/libtiff/libtiff/-/issues/350</a> <a href="https://gitlab.com/libtiff/libtiff/-/issues/351">https://gitlab.com/libtiff/libtiff/-/issues/351</a> <a href="https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=7d7bfa4416366ec64068ac389414241ed4730a54">https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=7d7bfa4416366ec64068ac389414241ed4730a54</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libtiff | <4.4.0 | 4.4.0 |
| Libtiff Libtiff | <4.4.0 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| debian/tiff | <=4.1.0+git191117-2~deb10u4 | 4.1.0+git191117-2~deb10u8 4.2.0-1+deb11u4 4.2.0-1+deb11u5 4.5.0-6+deb12u1 4.5.1+git230720-3 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2118847
- https://lists.debian.org/debian-lts-announce/2023/01/msg00018.html
- https://www.debian.org/security/2023/dsa-5333
- https://gitlab.com/libtiff/libtiff/-/issues/350
- https://gitlab.com/libtiff/libtiff/-/issues/351
- https://gitlab.com/libtiff/libtiff/-/merge_requests/294/diffs?commit_id=7d7bfa4416366ec64068ac389414241ed4730a54
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118851
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118853
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118850
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118854
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118852
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2118855
- https://access.redhat.com/errata/RHSA-2023:0095
- https://access.redhat.com/security/cve/cve-2022-2867
- https://gitlab.com/libtiff/libtiff/-/commit/07d79fcac2ead271b60e32aeb80f7b4f3be9ac8c
- https://security-tracker.debian.org/tracker/CVE-2022-2867
Frequently Asked Questions
What is CVE-2022-2867?
CVE-2022-2867 is a vulnerability in libtiff's tiffcrop utility that allows for a uint32_t underflow, leading to out-of-bounds read and write.
How can the CVE-2022-2867 vulnerability be exploited?
An attacker can exploit CVE-2022-2867 by supplying a crafted file to tiffcrop, potentially tricking a user into running tiffcrop on it with certain parameters.
What is the severity of CVE-2022-2867?
CVE-2022-2867 has a severity level of medium (4) based on the CVSS scoring.
Which software versions are affected by CVE-2022-2867?
Versions up to and exclusive of 4.4.0 for libtiff on Red Hat, and versions up to and inclusive of 4.1.0+git191117-2~deb10u4 for tiff on Debian are affected.
How can I fix CVE-2022-2867?
To fix CVE-2022-2867, update to version 4.4.0 for libtiff on Red Hat, or to a version higher than 4.1.0+git191117-2~deb10u4 for tiff on Debian.
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