CVE-2024-0727

Name	CVE-2024-0727
Description	Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3942-1, DLA-3942-2
Debian Bugs	1061582

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssl (PTS)	bullseye	1.1.1w-0+deb11u1	vulnerable
	bullseye (security)	1.1.1w-0+deb11u2	fixed
	bookworm	3.0.15-1~deb12u1	fixed
	bookworm (security)	3.0.14-1~deb12u2	fixed
	sid, trixie	3.3.2-2	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
openssl	source	bullseye	1.1.1w-0+deb11u2	DLA-3942-2
openssl	source	bookworm	3.0.13-1~deb12u1
openssl	source	(unstable)	3.1.5-1		1061582

Notes

[buster] - openssl <postponed> (Minor issue, DoS, Low severity)
https://www.openssl.org/news/secadv/20240125.txt
https://github.com/openssl/openssl/commit/041962b429ebe748c8b6b7922980dfb6decfef26 (master)
https://github.com/openssl/openssl/commit/8a85df7c60ba1372ee98acc5982e902d75f52130 (master)
https://github.com/openssl/openssl/commit/d135eeab8a5dbf72b3da5240bab9ddb7678dbd2c (openssl-3.1.5)
https://github.com/openssl/openssl/commit/febb086d0fc1ea12181f4d833aa9b8fdf2133b3b (openssl-3.1.5)