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CVE-2010-2939

Published: 17 August 2010

Double free vulnerability in the ssl3_get_key_exchange function in the OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and possibly other versions, when using ECDH, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted private key with an invalid prime. NOTE: some sources refer to this as a use-after-free issue.

Priority

Medium

Status

Package Release Status
openssl
Launchpad, Ubuntu, Debian
dapper
Released (0.9.8a-7ubuntu0.13)
hardy
Released (0.9.8g-4ubuntu3.11)
jaunty
Released (0.9.8g-15ubuntu3.6)
karmic
Released (0.9.8g-16ubuntu3.3)
lucid
Released (0.9.8k-7ubuntu8.3)
upstream Needs triage

openssl097
Launchpad, Ubuntu, Debian
dapper Ignored
(reached end-of-life)
hardy Does not exist

jaunty Does not exist

karmic Does not exist

lucid Does not exist

upstream Needs triage

Notes

AuthorNote
sbeattie
possibly stopped by glibc's double-free heap protection,
CVE asserts that it's needed in 0.9.7, though the referenced
email from solar designer claims that it's not needed in 0.9.7 as
ECDH hadn't been introduced yet as of openssl 0.9.7m.

References

Bugs