CVE-2020-35522: Buffer Overflow
First published: Tue Feb 23 2021(Updated: )
A flaw was found in libtiff 4.1.0 and before. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service. This is a different flaw from <a href="https://access.redhat.com/security/cve/CVE-2020-35521">CVE-2020-35521</a> References: <a href="https://gitlab.com/libtiff/libtiff/-/merge_requests/165">https://gitlab.com/libtiff/libtiff/-/merge_requests/165</a> <a href="https://gitlab.com/libtiff/libtiff/-/commit/98a254f5b92cea22f5436555ff7fceb12afee84d">https://gitlab.com/libtiff/libtiff/-/commit/98a254f5b92cea22f5436555ff7fceb12afee84d</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libtiff | <4.2.0 | 4.2.0 |
| IBM Cognos Analytics | <=12.0.0-12.0.3 | |
| IBM Cognos Analytics | <=11.2.0-11.2.4 FP4 | |
| TIFF | <4.2.0 | |
| NetApp ONTAP Select Deploy | ||
| Fedora | =33 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 | |
| Red Hat Enterprise Linux | =8.0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1932037
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
- https://security.gentoo.org/glsa/202104-06
- https://security.netapp.com/advisory/ntap-20210521-0009/
- https://access.redhat.com/security/cve/CVE-2020-35521
- https://gitlab.com/libtiff/libtiff/-/merge_requests/165
- https://gitlab.com/libtiff/libtiff/-/commit/98a254f5b92cea22f5436555ff7fceb12afee84d
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1932038
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1932039
- https://access.redhat.com/errata/RHSA-2021:4241
- https://access.redhat.com/security/cve/cve-2020-35522
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
- https://www.ibm.com/support/pages/node/7177223 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2020-35522?
CVE-2020-35522 is classified as a denial of service vulnerability due to a memory allocation failure.
How do I fix CVE-2020-35522?
To fix CVE-2020-35522, upgrade the libtiff package to version 4.2.0 or apply the recommended patches for affected software.
Which software is affected by CVE-2020-35522?
CVE-2020-35522 affects libtiff versions prior to 4.2.0 and several versions of IBM Cognos Analytics.
Is CVE-2020-35522 a remote attack vulnerability?
CVE-2020-35522 can potentially be exploited remotely through crafted TIFF files to cause denial of service.
What systems are at risk with CVE-2020-35522?
Systems running vulnerable versions of libtiff, Red Hat Enterprise Linux, or IBM Cognos Analytics are at risk for CVE-2020-35522.
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