CVE catalog

CVE-2021-32842

mono: CVE-2021-32842

Severity: Low
Source: [NVD] · [CVE record]
EPSS: 0.90% · Oct 25, 2026

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.0.0 and prior to version 1.3.3, a check was added if the destination file is under a destination directory. However, it is not enforced that `_baseDirectory` ends with slash. If the _baseDirectory is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins as the destination directory one level up from the directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 fixed this vulnerability.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mono	sid	`6.14.1+ds2-3`	not affected
Debian	mono	forky	`6.14.1+ds2-3`	not affected
Debian	mono	trixie	`6.12.0.199+dfsg-6`	not affected
Debian	mono	bookworm	`6.8.0.105+dfsg-3.3+deb12u1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mono	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	mono	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	mono	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	mono	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[ca-certificates-mono]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-2.0-1]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-2.0-dev]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-accessibility4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmonoboehm-2.0-1]Not affected
Source package: [mono]
Details (1)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmonoboehm-2.0-1-dbg]Not affected
Source package: [mono]
Details (1)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmonoboehm-2.0-dev]Not affected
Source package: [mono]
Details (1)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-btls-interface4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · amd64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · arm64 · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-cairo4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-cecil-private-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-cil-dev]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-codecontracts4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-compilerservices-symbolwriter4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-corlib4.5-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-corlib4.5-dll]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-cscompmgd0.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-csharp4.0c-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-custommarshalers4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-data-tds4.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
[libmono-db2-1.0-cil]Not affected
Source package: [mono]
Details (2)
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm
- 6.8.0.105+dfsg-3.3+deb12u1 · all · bookworm
  Not affected
  dsa · mono · debian · bookworm

Next results

Observed: Oct 23, 2026, 5:57:35 PM UTC

References

[https://security-tracker.debian.org/tracker/CVE-2021-32842]

[Debian Security Tracker] · [FIRST EPSS]