libc-devtools 2.39-0ubuntu8.8: libc-devtools 2.39-0ubuntu8.8 for Ubuntu 24.04.5 LTS (noble)

libc-devtools 2.39-0ubuntu8.8, released April 28, 2026, fixes 7 CVEs in libc-devtools. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0050

43rd percentile

Priority of the 7 CVEs

Patch now 0
                                Urgent 0
                                High 5
                                Routine 2

Fixed package versions

Product	Release	Fixed in
libc-devtools	Ubuntu 24.04.5 LTS (noble)	2.39-0ubuntu8.8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-5450	scanf %mc off-by-one heap buffer overflow	9.8	0.0050	None reported
High	CVE-2026-4046	iconv crash due to assertion failure with untrusted input	7.5	0.0039	None reported
High	CVE-2026-5928	Static buffer overflow in deprecated nis_local_principal	7.5	0.0037	None reported
High	CVE-2026-4437	gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response	7.5	0.0035	None reported
High	CVE-2026-5435	Potential buffer overflow in ns_sprintrrf TSIG handling path	8.6	0.0024	None reported
Routine	CVE-2026-6238	glibc-langpack-af: glibc: glibc: Application crash or uninitialized memory read via crafted DNS response	6.5	0.0036	None reported
Routine	CVE-2026-4438	gethostbyaddr and gethostbyaddr_r return invalid DNS hostnames	6.5	0.0031	None reported

Also fixes CVE-2026-5450

glibc-source 2.39-0ubuntu8.8
glibc-source on Ubuntu 24.04.5 LTS (noble)
libc-bin 2.39-0ubuntu8.8
libc-bin on Ubuntu 24.04.5 LTS (noble)
libc-dev-bin 2.39-0ubuntu8.8
libc-dev-bin on Ubuntu 24.04.5 LTS (noble)
libc6 2.39-0ubuntu8.8
libc6 on Ubuntu 24.04.5 LTS (noble)
libc6-amd64 2.39-0ubuntu8.8
libc6-amd64 on Ubuntu 24.04.5 LTS (noble)
libc6-dev-amd64 2.39-0ubuntu8.8
libc6-dev-amd64 on Ubuntu 24.04.5 LTS (noble)
libc6-dev-i386 2.39-0ubuntu8.8
libc6-dev-i386 on Ubuntu 24.04.5 LTS (noble)
libc6-dev-s390 2.39-0ubuntu8.8
libc6-dev-s390 on Ubuntu 24.04.5 LTS (noble)

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