CVE-2018-10195
published 2021-06-02CVE-2018-10195: lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap…
PriorityP428high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.39%
31.7th percentile
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | lrzsz | < lrzsz 0.12.21-10 (bookworm) | lrzsz 0.12.21-10 (bookworm) |
| lrzsz_project | lrzsz | <= 0.12.20 | — |
| lrzsz_project | lrzsz | >= 0 < 0.12.21-10 | 0.12.21-10 |
| lrzsz_project | lrzsz | >= 0 < 0.12.21-10 | 0.12.21-10 |
| lrzsz_project | lrzsz | >= 0 < 0.12.21-10 | 0.12.21-10 |
| lrzsz_project | lrzsz | >= 0 < 0.12.21-10 | 0.12.21-10 |
| msrc | cbl2_lrzsz_0.12.20-50_on_cbl_mariner_2.0 | — | — |
| suse | linux_enterprise_debuginfo | — | — |
| suse | linux_enterprise_desktop | — | — |
| suse | linux_enterprise_server | — | — |
| suse | linux_enterprise_server | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvdv2.03.6LOWAV:L/AC:L/Au:N/C:P/I:N/A:P
osv7.1HIGH
vendor_debian7.1LOW
vendor_msrc7.1HIGH
vendor_redhat7.1HIGH
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GHSA
GHSA-54q2-pv96-8qc2: lrzsz before version 0
ghsa_unreviewed·2022-05-24
CVE-2018-10195 [HIGH] CWE-190 GHSA-54q2-pv96-8qc2: lrzsz before version 0
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
OSV
CVE-2018-10195: lrzsz before version 0
osv·2021-06-02·CVSS 7.1
CVE-2018-10195 [HIGH] CVE-2018-10195: lrzsz before version 0
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
Microsoft
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
vendor_msrc·2021-06-08·CVSS 7.1
CVE-2018-10195 [HIGH] CWE-190 lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: M
Red Hat
lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
vendor_redhat·2018-04-18·CVSS 7.1
CVE-2018-10195 [HIGH] CWE-190 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
Statement: This issue did not affect the versions of lrzsz as shipped with Red Hat Enterprise Linux 5, 6, and 7. A patch was already applied for this vulnerability.
Package: lrzsz (Red Hat Enterprise Linux 5) - Not affected
Package: lrzsz (Red Hat Enterprise Linux 6) - Not affected
Package: lrzsz (Red Hat Enterprise Linux 7) - Not affected
Package: lrzsz (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2018-10195: lrzsz - lrzsz before version 0.12.21~rc can leak information to the receiving side due t...
vendor_debian·2018·CVSS 7.1
CVE-2018-10195 [HIGH] CVE-2018-10195: lrzsz - lrzsz before version 0.12.21~rc can leak information to the receiving side due t...
lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.
Scope: local
bookworm: resolved (fixed in 0.12.21-10)
bullseye: resolved (fixed in 0.12.21-10)
forky: resolved (fixed in 0.12.21-10)
sid: resolved (fixed in 0.12.21-10)
trixie: resolved (fixed in 0.12.21-10)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver [fedora-all]
bugzilla·2018-04-26·CVSS 7.1
CVE-2018-10195 [HIGH] CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver [fedora-all]
CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
N
Bugzilla
CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
bugzilla·2018-04-26·CVSS 7.1
CVE-2018-10195 [HIGH] CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
CVE-2018-10195 lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver
Lrzsz has an integer overflow vulernability in the src/zm.c:zsdata() function. An attacker could exploit this with the sz command to cause a crash or potentially leak information to the receiving server.
Additional References:
https://bugzilla.novell.com/show_bug.cgi?id=1090051
Discussion:
Created lrzsz tracking bugs for this issue:
Affects: fedora-all [bug 1572059]
---
Does this affect our packages?
We have the following patch (added for bug #75473), which fixes the zsdata() function to handle a length of zero:
https://src.fedoraproject.org/cgit/rpms/lrzsz.git/tree/lrzsz-0.12.20.patch
The changelog of the SUSE package indicates it was fixed in the 0.12.21rc versio
http://www.ohse.de/uwe/software/lrzsz.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1572058https://lists.debian.org/debian-lts-announce/2022/01/msg00027.htmlhttps://lists.suse.com/pipermail/sle-security-updates/2018-April/003955.html?_ga=2.81625751.1026327980.1622040648-1950393542.1547130931https://lists.suse.com/pipermail/sle-security-updates/2018-April/003956.html?_ga=2.81625751.1026327980.1622040648-1950393542.1547130931http://www.ohse.de/uwe/software/lrzsz.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1572058https://lists.debian.org/debian-lts-announce/2022/01/msg00027.htmlhttps://lists.suse.com/pipermail/sle-security-updates/2018-April/003955.html?_ga=2.81625751.1026327980.1622040648-1950393542.1547130931https://lists.suse.com/pipermail/sle-security-updates/2018-April/003956.html?_ga=2.81625751.1026327980.1622040648-1950393542.1547130931
2021-06-02
Published