CVE-2023-38039

NameCVE-2023-38039
DescriptionWhen curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.
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)bullseye7.74.0-1.3+deb11u12fixed
bullseye (security)7.74.0-1.3+deb11u11fixed
bookworm7.88.1-10+deb12u6fixed
bookworm (security)7.88.1-10+deb12u5fixed
sid, trixie8.8.0-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
curlsourcebuster(not affected)
curlsourcebullseye(not affected)
curlsourcebookworm7.88.1-10+deb12u3
curlsource(unstable)8.3.0-1

Notes

[bullseye] - curl <not-affected> (Vulnerable code not present)
[buster] - curl <not-affected> (Vulnerable code not present)
https://www.openwall.com/lists/oss-security/2023/09/13/1
https://curl.se/docs/CVE-2023-38039.html
Introduced by: https://github.com/curl/curl/commit/7c8c723682d524ac9580b9ca3b71419163cb5660 (curl-7_83_0)
Experimental tag removed in: https://github.com/curl/curl/commit/4d94fac9f0d1dd02b8308291e4c47651142dc28b (curl-7_84_0)
Fixed by: https://github.com/curl/curl/commit/3ee79c1674fd6f99e8efca52cd7510e08b766770 (curl-8_3_0)

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