CVE-2021-20303 — Integer Overflow or Wraparound in Openexr

CWE-190 — Integer Overflow or WraparoundCWE-787 — Out-of-bounds Write5 documents5 sources
Severity
6.1MEDIUMNVD
EPSS
0.1%
top 67.29%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
OpenexrDebian OpenexrDebian Linux
Timeline
PublishedMar 4
Latest updateMar 5

Description

A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:HExploitability: 1.8 | Impact: 4.2

Affected Packages4 packages

▶debiandebian/openexr< openexr 2.5.4-1 (bookworm)
▶NVDopenexr/openexr< 2.5.4
▶Debianopenexr/openexr< 2.5.4-1+3
▶CVEListV5openexr/openexrFixed in v2.5.4 and beyond.

Also affects: Debian Linux 10.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-vhq7-5jv5-9gwf: A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc↗2022-03-05
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OSV
CVE-2021-20303: A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc↗2022-03-04
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📋Vendor Advisories

2
Red Hat
OpenEXR: Heap-buffer-overflow in Imf_2_5::copyIntoFrameBuffer↗2021-02-15
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Debian
CVE-2021-20303: openexr - A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An atta...↗2021
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