CVE-2023-52974
scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails, userspace could be accessing the host's ipaddress attr. If we then free the session via iscsi_session_teardown() while userspace is still accessing the session we will hit a use after free bug. Set the tcp_sw_host->session after we have completed session creation and can no longer fail.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.39
References 7
git.kernel.org
- stable/c/496af9d3682ed4c28fb734342a09e6cc0c056ea4
- stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0
- stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9
- stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0
- stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6
- stable/c/61e43ebfd243bcbad11be26bd921723027b77441
- stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3