| Summary: | <dev-libs/openssl-1.0.2h-r2: Possible integer overflow vulnerabilities in codebase (CVE-2016-2177) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | major | CC: | base-system |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | https://bugzilla.redhat.com/show_bug.cgi?id=1341705 | ||
| Whiteboard: | A2 [glsa cve] | ||
| Package list: | Runtime testing required: | --- | |
| Bug Depends on: | 585276 | ||
| Bug Blocks: | |||
CVE-2016-2177 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2177): OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c. Fixed in openssl-1.0.2h-r2 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b4bfc10ce01e37a79da48f2f8349200c7eca78ed This issue was resolved and addressed in GLSA 201612-16 at https://security.gentoo.org/glsa/201612-16 by GLSA coordinator Aaron Bauman (b-man). |
From ${URL} : A common idiom in the codebase is: if (p + len > limit) { return; /* Too long */ } where p points to some malloc'd data of SIZE bytes and limit == p + SIZE. 'len' could be from some externally supplied data, e.g. TLS message. This idiom is vulnerable to integer overflow vulnerability. Upstream commit: 6f35f6deb5ca7daebe289f86477e061ce3ee5f46 @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.