Bug 1202662 - (CVE-2020-35511) VUL-0: CVE-2020-35511: pngcheck: Buffer overflow in pngcheck 2.4.0 via a crafted png file
VUL-0: CVE-2020-35511: pngcheck: Buffer overflow in pngcheck 2.4.0 via a craf...
Status: NEW
Classification: openSUSE
Product: openSUSE Distribution
Classification: openSUSE
Component: Security
Leap 15.4
Other Other
: P3 - Medium : Normal (vote)
: ---
Assigned To: Security Team bot
Security Team bot
Depends on:
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Reported: 2022-08-24 07:15 UTC by Hu
Modified: 2022-10-06 01:18 UTC (History)
0 users

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Hu 2022-08-24 07:15:46 UTC

A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0(5
patches applied) via a crafted png file.

Comment 1 Hu 2022-08-24 07:16:22 UTC
- openSUSE:Backports:SLE-15-SP3/pngcheck  2.3.0

Not Affected:
- openSUSE:Backports:SLE-15-SP4/pngcheck  3.0.0
- openSUSE:Factory/pngcheck               3.0.3
Comment 2 Petr Gajdos 2022-08-25 10:47:04 UTC
 * 20201113 BB:  fixed buffer-overflow vulnerability discovered by "giantbranch
 *               of NSFOCUS Security Team"
 *               https://bugzilla.redhat.com/show_bug.cgi?id=1897485
 * 20201128 BB:  found and fixed four additional vulnerabilities (null-pointer
 *               dereference and three buffer overruns)
 * 20201209 LP:  fixed an off-by-one bug in check_magic() (Lucy Phipps)
 * 20201209 LL:  converted two zlib-version warnings/errors to go to stderr
 *               (Lemures Lemniscati, actually from 20180318; forwarded by LP)
 * 20201210 BB:  fixed another buffer-overflow vulnerability discovered by
 *               "giantbranch of NSFOCUS Security Team"
 *               https://bugzilla.redhat.com/show_bug.cgi?id=1905775
 * 20201212 GRR: removed -f ("force") option due to multiple security issues
 * 20201212 GRR: released version 3.0.0
 *               ----------------------

I propose to update the pngcheck in backports to 3.0.3. In B15sp4 for sure (see http://www.libpng.org/pub/png/apps/pngcheck.html) and preferably also in B15sp3, even if -f option removed in 3.0.0.

Packages submitted for B15sp4,B15sp3/pngcheck.

I believe all fixed.
Comment 3 OBSbugzilla Bot 2022-08-29 10:40:02 UTC
This is an autogenerated message for OBS integration:
This bug (1202662) was mentioned in
https://build.opensuse.org/request/show/999895 Backports:SLE-15-SP3 / pngcheck
Comment 4 Swamp Workflow Management 2022-10-06 01:18:49 UTC
openSUSE-SU-2022:10142-1: An update that fixes one vulnerability is now available.

Category: security (moderate)
Bug References: 1202662
CVE References: CVE-2020-35511
JIRA References: 
Sources used:
openSUSE Backports SLE-15-SP3 (src):    pngcheck-3.0.3-bp153.3.3.1