CVE-2015-1791

medium
Published 2015-06-12 · Modified 2026-05-06
CVSS v3
CVSS v2
6.8
VIR risk
6.8

Description

Race condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-1791

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — https://www.openssl.org/news/secadv_20150611.txt

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1.0.2b-1
debian debianbullseyefixed1.0.2b-1
debian debianforkyfixed1.0.2b-1
debian debiansidfixed1.0.2b-1
debian debiantrixiefixed1.0.2b-1

Application impact

VendorProductVersionsFixed
openssl opensslopenssl{"endIncluding":"0.9.8zf"}
openssl opensslopenssl1.0.0
openssl opensslopenssl1.0.0a
openssl opensslopenssl1.0.0b
openssl opensslopenssl1.0.0c
openssl opensslopenssl1.0.0d
openssl opensslopenssl1.0.0e
openssl opensslopenssl1.0.0f
openssl opensslopenssl1.0.0g
openssl opensslopenssl1.0.0h
openssl opensslopenssl1.0.0i
openssl opensslopenssl1.0.0j
openssl opensslopenssl1.0.0k
openssl opensslopenssl1.0.0l
openssl opensslopenssl1.0.0m
openssl opensslopenssl1.0.0n
openssl opensslopenssl1.0.0o
openssl opensslopenssl1.0.0p
openssl opensslopenssl1.0.0q
openssl opensslopenssl1.0.0r
openssl opensslopenssl1.0.1
openssl opensslopenssl1.0.1a
openssl opensslopenssl1.0.1b
openssl opensslopenssl1.0.1c
openssl opensslopenssl1.0.1d
openssl opensslopenssl1.0.1e
openssl opensslopenssl1.0.1f
openssl opensslopenssl1.0.1g
openssl opensslopenssl1.0.1h
openssl opensslopenssl1.0.1i
openssl opensslopenssl1.0.1j
openssl opensslopenssl1.0.1k
openssl opensslopenssl1.0.1l
openssl opensslopenssl1.0.1m
openssl opensslopenssl1.0.2
openssl opensslopenssl1.0.2a

References

CWEs

CWE-362

Verify integrity in audit chain (admin only). AS-IS.