CVE-2021-45958

· MEDIUMModified

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CVSS v3.1

5.5

EPSS

1.55%

Published

Dec 31, 2021

Modified

Nov 21, 2024

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-787

Affected Products (5)

ultrajson_project · ultrajson (up to 5.2.0)vulnerable

debian · debian_linuxvulnerable

fedoraproject · fedoravulnerable

References (20)

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009

ExploitIssue TrackingThird Party Advisory

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml

ExploitThird Party Advisory

https://github.com/ultrajson/ultrajson/issues/501

ExploitIssue TrackingThird Party Advisory

https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284

Issue TrackingPatchThird Party Advisory

https://github.com/ultrajson/ultrajson/pull/504

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009

ExploitIssue TrackingThird Party Advisory

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml

ExploitThird Party Advisory

https://github.com/ultrajson/ultrajson/issues/501

ExploitIssue TrackingThird Party Advisory

https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284

Issue TrackingPatchThird Party Advisory

https://github.com/ultrajson/ultrajson/pull/504

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6/

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