CVE-2020-5283

NameCVE-2020-5283
DescriptionViewVC before versions 1.1.28 and 1.2.1 has a XSS vulnerability in CVS show_subdir_lastmod support. The impact of this vulnerability is mitigated by the need for an attacker to have commit privileges to a CVS repository exposed by an otherwise trusted ViewVC instance that also has the `show_subdir_lastmod` feature enabled. The attack vector involves files with unsafe names (names that, when embedded into an HTML stream, would cause the browser to run unwanted code), which themselves can be challenging to create. This vulnerability is patched in versions 1.2.1 and 1.1.28.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
viewvc (PTS)buster1.1.26-1vulnerable
buster (security)1.1.26-1+deb10u1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
viewvcsource(unstable)(unfixed)

Notes

[buster] - viewvc <no-dsa> (Minor issue)
[stretch] - viewvc <no-dsa> (Minor issue)
[jessie] - viewvc <no-dsa> (Minor issue)
https://github.com/viewvc/viewvc/security/advisories/GHSA-xpxf-fvqv-7mfg
https://github.com/viewvc/viewvc/commit/ad0f966e9a997b17d853a6972ea283d4dcd70fa8
https://github.com/viewvc/viewvc/issues/211

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