Bug 1939193 (CVE-2020-36277) - CVE-2020-36277 leptonica: DoS via an incorrect left shift in pixConvert2To8 in pixconv.c
Summary: CVE-2020-36277 leptonica: DoS via an incorrect left shift in pixConvert2To8 i...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-36277
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1939194 1939195 1939196 1942945
Blocks: 1939215
TreeView+ depends on / blocked
 
Reported: 2021-03-15 17:46 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-10-28 14:08 UTC (History)
3 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in leptonica. A incorrect shift in pixConvert2To8 function may allow an attacker to crash an application using leptonica. The highest threat from this vulnerability is to the availability of the application.
Clone Of:
Environment:
Last Closed: 2021-10-28 14:08:02 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-03-15 17:46:39 UTC 
Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.

Reference:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21997

Upstream patch:
https://github.com/DanBloomberg/leptonica/pull/499
Comment 1 Guilherme de Almeida Suckevicz 2021-03-15 17:47:05 UTC 
Created leptonica tracking bugs for this issue:

Affects: epel-7 [bug 1939196]
Affects: fedora-all [bug 1939194]


Created mingw-leptonica tracking bugs for this issue:

Affects: fedora-all [bug 1939195]
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