CVE-2021-32841

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.3.0 and prior to version 1.3.3, a check was added if the destination file is under destination directory. However, it is not enforced that `destDir` ends with slash. If the `destDir` is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins with the destination 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 contains a patch for this vulnerability.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
GitHub_MCNA
4 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVEADP
---
---
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 57%
VendorProductVersion
sharpziplib_projectsharpziplib
1.3.0 ≤
𝑥
< 1.3.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mono
bullseye
6.8.0.105+dfsg-3.3~deb11u1
fixed
bookworm
6.8.0.105+dfsg-3.3
fixed
sid
6.12.0.199+dfsg-2
fixed
trixie
6.12.0.199+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mono
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected