Netpbm up to 10.86.50/11.02.28/11.03.06 Sgitopnm readChannels heap-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in Netpbm up to 10.86.50/11.02.28/11.03.06. Affected by this issue is the function readChannels of the component Sgitopnm. Performing a manipulation results in heap-based overflow. This vulnerability is reported as CVE-2026-120431. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Netpbm up to 10.86.50/11.02.28/11.03.06. It has been classified as critical. This affects the function readChannels of the component Sgitopnm. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Netpbm before 10.86.51, 11.x before 11.02.29, and 11.03 before 11.15.07 contains a heap-based buffer overflow in sgitopnm's readChannels() function when processing RLE-compressed SGI images. Attackers can supply crafted SGI files with oversized offset table lengths to write controlled data past the heap buffer, causing crashes or potential code execution.

The advisory is shared at sourceforge.net. This vulnerability is uniquely identified as CVE-2026-120431 since 11/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 10.86.51, 11.02.29 or 11.15.07 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Netpbm

Version

• 10.86.0
• 10.86.1
• 10.86.2
• 10.86.3
• 10.86.4
• 10.86.5
• 10.86.6
• 10.86.7
• 10.86.8
• 10.86.9
• 10.86.10
• 10.86.11
• 10.86.12
• 10.86.13
• 10.86.14
• 10.86.15
• 10.86.16
• 10.86.17
• 10.86.18
• 10.86.19
• 10.86.20
• 10.86.21
• 10.86.22
• 10.86.23
• 10.86.24
• 10.86.25
• 10.86.26
• 10.86.27
• 10.86.28
• 10.86.29
• 10.86.30
• 10.86.31
• 10.86.32
• 10.86.33
• 10.86.34
• 10.86.35
• 10.86.36
• 10.86.37
• 10.86.38
• 10.86.39
• 10.86.40
• 10.86.41
• 10.86.42
• 10.86.43
• 10.86.44
• 10.86.45
• 10.86.46
• 10.86.47
• 10.86.48
• 10.86.49
• 10.86.50
• 11.02.0
• 11.02.1
• 11.02.2
• 11.02.3
• 11.02.4
• 11.02.5
• 11.02.6
• 11.02.7
• 11.02.8
• 11.02.9
• 11.02.10
• 11.02.11
• 11.02.12
• 11.02.13
• 11.02.14
• 11.02.15
• 11.02.16
• 11.02.17
• 11.02.18
• 11.02.19
• 11.02.20
• 11.02.21
• 11.02.22
• 11.02.23
• 11.02.24
• 11.02.25
• 11.02.26
• 11.02.27
• 11.02.28
• 11.03.06

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