An update of the cmake package has been released.

curl security problems :

CVE-2019-5481: FTP-KRB double-free

libcurl can be told to use kerberos over FTP to a server, as set with the CURLOPT_KRBLEVEL option.

During such kerberos FTP data transfer, the server sends data to curl in blocks with the 32 bit size of each block first and then that amount of data immediately following.

A malicious or just broken server can claim to send a very large block and if by doing that it makes curl's subsequent call to realloc() to fail, curl would then misbehave in the exit path and double-free the memory.

In practical terms, an up to 4 GB memory area may very well be fine to allocate on a modern 64 bit system but on 32 bit systems it will fail.

Kerberos FTP is a rarely used protocol with curl. Also, Kerberos authentication is usually only attempted and used with servers that the client has a previous association with.

CVE-2019-5482: TFTP small blocksize heap buffer overflow

libcurl contains a heap buffer overflow in the function (tftp_receive_packet()) that receives data from a TFTP server. It can call recvfrom() with the default size for the buffer rather than with the size that was used to allocate it. Thus, the content that might overwrite the heap memory is controlled by the server.

This flaw is only triggered if the TFTP server sends an OACK without the BLKSIZE option, when a BLKSIZE smaller than 512 bytes was requested by the TFTP client. OACK is a TFTP extension and is not used by all TFTP servers.

Users choosing a smaller block size than default should be rare as the primary use case for changing the size is to make it larger.

It is rare for users to use TFTP across the Internet. It is most commonly used within local networks. TFTP as a protocol is always inherently insecure.

This issue was introduced by the add of the TFTP BLKSIZE option handling. It was previously incompletely fixed by an almost identical issue called CVE-2019-5436.

This update for curl fixes the following issues :

Security issues fixed :

  - CVE-2019-5481: Fixed FTP-KRB double-free during kerberos     FTP data transfer (bsc#1149495).

  - CVE-2019-5482: Fixed TFTP small blocksize heap buffer     overflow (bsc#1149496).

This update was imported from the SUSE:SLE-15:Update update project.

The remote SUSE Linux SLES11 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2019:14172-1 advisory.

  - Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. (CVE-2019-5482)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0877 advisory.

    The curl packages provide the libcurl library and the curl utility for downloading files from servers     using various protocols, including HTTP, FTP, and LDAP.

    Security Fix(es):

    * curl: heap buffer overflow in function tftp_receive_packet() (CVE-2019-5482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the curl-openssl package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A heap buffer overflow in the TFTP receiving code     allows for DoS or arbitrary code execution in libcurl     versions 7.19.4 through 7.64.1.(CVE-2019-5436)

  - Heap buffer overflow in the TFTP protocol handler in     cURL 7.19.4 to 7.65.3.(CVE-2019-5482)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities were discovered in cURL, an URL transfer library.

  - CVE-2019-5436     A heap buffer overflow in the TFTP receiving code was     discovered, which could allow DoS or arbitrary code     execution. This only affects the oldstable distribution     (stretch).

  - CVE-2019-5481     Thomas Vegas discovered a double-free in the FTP-KRB     code, triggered by a malicious server sending a very     large data block.

  - CVE-2019-5482     Thomas Vegas discovered a heap buffer overflow that     could be triggered when a small non-default TFTP     blocksize is used.

According to the versions of the curl packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - Heap buffer overflow in the TFTP protocol handler in     cURL 7.19.4 to 7.65.3.(CVE-2019-5482)

  - curl before version 7.51.0 uses outdated IDNA 2003     standard to handle International Domain Names and this     may lead users to potentially and unknowingly issue     network transfer requests to the wrong     host.(CVE-2016-8625)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
203839	Photon OS 3.0: Cmake PHSA-2023-3.0-0603	Nessus	PhotonOS Local Security Checks	7/24/2024	7/24/2024	critical
128795	FreeBSD : curl -- multiple vulnerabilities (9fb4e57b-d65a-11e9-8a5f-e5c82b486287)	Nessus	FreeBSD Local Security Checks	9/16/2019	4/26/2024	critical
128987	openSUSE Security Update : curl (openSUSE-2019-2149)	Nessus	SuSE Local Security Checks	9/18/2019	4/24/2024	critical
150558	SUSE SLES11 Security Update : curl (SUSE-SU-2019:14172-1)	Nessus	SuSE Local Security Checks	6/10/2021	6/10/2021	critical
147830	RHEL 7 : curl (RHSA-2021:0877)	Nessus	Red Hat Local Security Checks	3/17/2021	11/7/2024	critical
134744	EulerOS Virtualization 3.0.2.2 : curl-openssl (EulerOS-SA-2020-1278)	Nessus	Huawei Local Security Checks	3/20/2020	3/21/2024	critical
133968	Debian DSA-4633-1 : curl - security update	Nessus	Debian Local Security Checks	2/25/2020	3/26/2024	critical
134522	EulerOS Virtualization for ARM 64 3.0.2.0 : curl (EulerOS-SA-2020-1233)	Nessus	Huawei Local Security Checks	3/13/2020	3/22/2024	critical

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