CVE-2024-7264

Publication date 31 July 2024

Last updated 20 August 2024

Ubuntu priority

Cvss 3 Severity Score

libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the *time fraction*, leading to a `strlen()` getting performed on a pointer to a heap buffer area that is not (purposely) null terminated. This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when [CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	24.04 LTS noble	Fixed 8.5.0-2ubuntu10.2
	22.04 LTS jammy	Fixed 7.81.0-1ubuntu1.17
	20.04 LTS focal	Fixed 7.68.0-1ubuntu2.23
	18.04 LTS bionic	Fixed 7.58.0-2ubuntu3.24+esm5 Ubuntu Pro
	16.04 LTS xenial	Fixed 7.47.0-1ubuntu2.19+esm13 Ubuntu Pro
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.20+esm18 Ubuntu Pro

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Notes

rodrigo-zaiden

seems like it was introduced in commit 3a24cb7bc456366cbc3a03f7ab6d2576105a1f2d (version 7.32.0)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
curl	Upstream: 27959ec

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H