CVE-2020-35521: 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. 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/b5a935d96b21cda0f434230cdf8ca958cd8b4eef">https://gitlab.com/libtiff/libtiff/-/commit/b5a935d96b21cda0f434230cdf8ca958cd8b4eef</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 | |
| Red Hat Enterprise Linux | =7.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Fedora | =33 | |
| NetApp ONTAP Select Deploy |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1932034
- 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://gitlab.com/libtiff/libtiff/-/merge_requests/165
- https://gitlab.com/libtiff/libtiff/-/commit/b5a935d96b21cda0f434230cdf8ca958cd8b4eef
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1932035
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1932036
- https://access.redhat.com/errata/RHSA-2021:4241
- https://access.redhat.com/security/cve/cve-2020-35521
- 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-2020-35521?
CVE-2020-35521 is classified as a denial of service vulnerability due to a memory allocation failure.
How do I fix CVE-2020-35521?
To mitigate CVE-2020-35521, upgrade libtiff to version 4.2.0 or apply the relevant patches for affected software.
Which software is affected by CVE-2020-35521?
CVE-2020-35521 affects libtiff versions 4.1.0 and prior, as well as specific versions of IBM Cognos Analytics.
Can CVE-2020-35521 be exploited remotely?
Yes, CVE-2020-35521 can be exploited through a crafted TIFF file leading to a denial of service.
Is there any known exploit for CVE-2020-35521?
There are no specific publicly known exploits for CVE-2020-35521 as of yet, but the vulnerability poses a risk of service interruption.
- agent/type
- agent/first-publish-date
- agent/remedy
- agent/severity
- agent/weakness
- agent/author
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-35521
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/event
- collector/ibm-support
- source/IBM
- agent/last-modified-date
- agent/references
- agent/description
- agent/trending
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- package-manager/redhat
- vendor/ibm
- canonical/ibm cognos analytics
- version/ibm cognos analytics/12.0.0-12.0.3
- version/ibm cognos analytics/11.2.0-11.2.4 fp4
- vendor/libtiff
- canonical/tiff
- vendor/redhat
- canonical/red hat enterprise linux
- version/red hat enterprise linux/7.0
- version/red hat enterprise linux/8.0
- vendor/fedoraproject
- canonical/fedora
- version/fedora/33
- vendor/netapp
- canonical/netapp ontap select deploy