CVE-2022-35260

NameCVE-2022-35260
Descriptioncurl can be told to parse a `.netrc` file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.
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
curl (PTS)buster7.64.0-4+deb10u2fixed
buster (security)7.64.0-4+deb10u9fixed
bullseye (security), bullseye7.74.0-1.3+deb11u11fixed
bookworm, bookworm (security)7.88.1-10+deb12u5fixed
sid, trixie8.8.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
curlsourcebuster(not affected)
curlsourcebullseye(not affected)
curlsource(unstable)7.86.0-1

Notes

[bullseye] - curl <not-affected> (Vulnerable code not present)
[buster] - curl <not-affected> (Vulnerable code not present)
https://curl.se/docs/CVE-2022-35260.html
introduced by: https://github.com/curl/curl/commit/eeaae10c0fb27aa066fdc296074edeacfdeb6522 (curl-7_84_0)
Fixed by: https://github.com/curl/curl/commit/c97ec984fb2bc919a3aa863e0476dffa377b184c (curl-7_86_0)

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